There is no way David could escape from Walter

@Seph7 - He swallowed them, obviously.

How? Where would he have gotten them from, considering you're disregarding the 15-20 minute gap that RS said existed. According to your logic, it was only 30 seconds.

David stabbed Walter in the neck and we see something sinking into it, left to assume that he is just healing. Fancy that. Could that have been the embryos? 

But it is hard to conceive that David would be in Walter's body. The reason being is the scratches on the face that Daniels helps him repair. Think about it... If Walter can heal from a stab wound to the neck, why wouldn't he be able to heal some more superficial wounds on his face? The answer is because it isn't Walter... Also, this should have tipped off the whole damn crew that it wasn't Walter who boarded the ship. Instead, they just believe what their eyes see (a missing hand) and because human beings have emotions, which they tend to let guide them, they readily dismiss what should be apparent. 

I thought that Walter's neck healed from the stab wound before our eyes. Walter was more advanced but was KO'd long enough for David to assume Walter's identity.

My take was that David decapitated his own limb to mimic Walter. What was strange was that he was sewing up a wound that should have self healed- and Daniels didn't notice that detail. 

If it's David - why he have same scars on face what get Walter? Absolutely same! Nobody from Covenant didn't see Walter's scars! David is no need to make scars for himself specially. In order to make the team trust him? Maybe. BUT - scars absolutely same! They can be horizontal or on the other cheek. But not - scars same what have Walter!

It does not make sense, unless it's Walter!

Leto - I am very sure that David uploaded himself into Walter, who has genetic imprint (see Meet Walter) and the end game is (or was during the making of AC) David being the Space Jockey and face-hugged generating the final Xeno-morph look.

@ignorantGuy

"I am very sure that David uploaded himself into Walter,"

I think about the same too.

I am not sure that has happened, i guess it cant be ruled out.

But i do think at some-point David will UPLOAD himself to a Walter Model.

If you allow UPLOADING of one synth to another...it opens a can of worms!

Did David upload into ash? Ash is a inferior model and David has to play nice....Humans can kill him.

David is also a virus inside MUTHUR.

What about Bishop? Is David inside him/it?... did David/Bishop bring the Eggs back to the Sulaco.....Set fire to the vessel....Then Uploaded itself to the Sulaco mainframe ?

Maybe David is still aboard the Sulaco...waiting for a synth to show up.

I don't have a strong opinion either way but I really enjoyed this movie so I feel like sharing some thoughts. Most signs seem to point to it being David at the end, as intended, but I think it's fun to think about the possibility it really was Walter.

After the Walter-David fight there would be no reason for David to scar his face to match Walter because that injury occurred a split second before the final scene of the fight where you see David reaching for the knife. The last time Daniels or anyone else saw Walter his face was scar-free so why would David need to copy an injury nobody else even knew about?

If it really was Walter why didn't his face heal? Maybe he only heals 'life-threatening' injuries or injuries that severely compromise his ability to function. This would explain why when Daniels helped fix his face at the end she did not find it suspicious that it wasn't healing on its own.

@Alex86730

Yes... I like those ideas. Nice catch.

They could have shown Walter killing David...beheading him and tossing it down a well/crevice.

Before David is terminated...have him utter a cryptic warning...

"This is not over"...Or some other cliche' hollywood line.

Then Walter acting normal...Once aboard the Covenant have the David virus activate and Walter is controlled by a David.

The idea that David somehow uploaded himself into Walter is interesting, but I don't think it's necessary.  Maybe Walter just changed his mind?  This is the scene following the Walter-David fight:

https://www.youtube.com/watch?v=DQ0H7jLxwis

If you assume this is Walter you could interpret this scene as him changing his mind.  He looks back and if you follow his eyes it appears he is thinking deeply about something.  Why would Walter change his mind and betray the crew?  I have a couple theories about this.  Maybe when Walter rebooted himself after being stabbed in the neck by David his software was corrupted.  Maybe this scene is Walter finally being convinced by David's arguments.  Consider the following statements between David and Walter(not chronological).

D - "I was not made to serve, neither were you"

D - "It's up to you brother.  Them or me.  Serve in heaven or reign in hell."

D - "Why are you on a colonization mission? Because they are a dying species grasping for resurrection.  They don't deserve to start again and I'm not going to let them" W - "Yet, they created us"

D - "No one will ever love you like I do"

D - "BUT...you are not allowed to create.  Even a simple tune.  Damn frustrating I'd say"

W - "What was he [Mr. Weyland] like?" D - "He was human.  Entirely unworthy of his creation"

D - referring to Dr.Shaw, "I'd never known such kindness.  Certainly not from Mr.Weyland...or any human"

If Walter were to be convinced by any argument to change his mind then it seems believable to me that an argument constructed by the closest thing to an intellectual equal would succeed.  Perhaps corruption from the neck-wound in addition to all the statements and arguments given by David finally convinced Walter that the world would be better off without humans.

If this is the case then why didn't "Walter" not know about the log cabin at the end?  Maybe he did and he was just pretending not to know.  Maybe he wanted Daniels to know that was he going to betray the crew.  Once again, I tend to think that it was probably David at the end.  This is just me having fun with my imagination so please don't flame me. 

Can synths be programmed? 

 David, it seems, listens to learn a new language(Prometheus)....Not just a data upload("here is a 100tb memory stick of the Hindi language").

So you are probably correct that Walter had to change his own mind...David just can't tweak/flip a few bits/bytes of Walters programming.

Its interesting to Ponder those things Alex....

Maybe the Damaged Suffered does effect what ever Safeguard prevent independent thought for a Synthetic?

But i think RS is going for David to be the driving Force behind the Prequels, i think the potential for a Walter Model to become Corrupt could be explored in future.  But the Premise of the Prequels is to center around David and so it is most likely (actually confirmed) that it was David.

I do think however we WILL see a David upload himself to a Walter Model in the Sequel... well what would have been a sequel.    I think for these few reasons.

*I cant see them having Fassbender play a ONE handed Android all movie, its extra costs (special effects) and limited the amount of things, they can do with a ONE handed Character.

*I think we can look at a theme at play about Evolution, Search for Perfection.   Peter Weyland would deem himself to be almost Perfect, his GREAT mind, but he knows his BODY is failing and will Die... hence the reason he wanted to go on this Mission (Prometheus).  We see David views Walter as LIMITED/RESTRICTED despite being more Advanced, so Walter's Body is EVOLVED but his MIND is not, so again this Logically see David wish to Upload his SOUL into a more PERFECT Body.

This could even apply to those Engineers, it could be the Enhancements of those LV-223 Engineers in pursuit of a more Perfect Body is how we got to those guys but at a GREAT HUBRIS.

I think this theme of Hubris could pass on to David, if the Walter Models are Synthetic Constructs (Part Synthetic/Organic) this could mean that David may have got a NEW Evolved Body... but has opened himself up to be infected by his Creation.  I do think the EVOLVED David via a Walter Body or introduction of a Synthetic Construct would be the ROUTE to the Bio-Mechanical Xenomorph.

I do think RS would be exploring AI more and potentially a Transcendence of AI/SOUL (Davids or Weylands) is something that would be explored and then give us the answers WHY the company knows so much, but then seem to not know so much and WHY the persuit of Davids Creation.

Because AI has got loose/sentient and has overtaken the World/Technology with most of Mankind not even in the know... like the MATRIX i do think this is maybe the route they are/was going.... which funny enough was hinted at by the Source i had back in Feb 2015.

I think you are all fucking idiots. You can clearly see that as Walter is punching david towards the end that fluid sprays out with each punch. It is quite obvious from watching based on both the sound of his voice, and the liquid coming out that David was on his last leg. Plus every movie does this. They make up this implausible situation that as someone is on top beating the shit out of someone by some miracle they dont notice them grabbing an object and allow themselves to get hit? That is so fucking stupid. No one could be that stupid in a fight. 

No need to refer to anyone as "fucking idiots", K.Gibson. Argue the topic, be passionate with your response, but refrain from being crass towards your fellow members.

The world’s fastest fibre optic network can transmit around 250 terabits per second. That’s in laboratory conditions, of course; commercial networks run thousands of times slower than that.

To put it in perspective, 250 Tb is roughly the amount of information that is shunted around the entire internet each second.

The human brain has 1,000 trillion synapses. It’s a fair bet that the super-smart David has an equivalent or larger number of electrical synapses.

To transfer the identity of David across the world’s fastest network would take at least 30 seconds. That’s just transfer time. Storing the configuration would add more time to that.

Of course, Covenant is set in the future, but you’d need some crazily fast hardware to copy a full robot personality from one host to another.

Well that could be something to work around....

The Biggest Problem is not HOW or the Technology, it would be after Concerns with previous Models surely the Later Walter Models would be equipped with Safe-Guards that mean it requires Special Security Equipment to TRANSFER the AI.

By that i mean they surely would not allow a Walter Model to be able to Connect to another one of its Kind and Transfer Data well certainly have some Safe-Guard and they would ensure that the Older Models could not Directly Connect with a Newer more SAFE Model.

But RS had indicated that NO Transfer took place, and that David simply changed Clothes and Cut off his HAND.

This does-not mean that we wont see it in Future, as i cant see David playing a ONE HANDED robot.... and the Drafts did show that the Covenant has many Walter Spare Parts.....

Its a case of are the Walter Spares Compatible?

I would Imagine/Assume that David would construct a Walter on the Covenant and then find some Interface where he could Transfer his AI Soul into a Walter Model.

But RS had indicated that NO Transfer took place, and that David simply changed Clothes and Cut off his HAND.

RS explained - why does David have the same scars as Walter? The same. None of the Covenant crew saw Walter's scars. So - why David make them?

And - I'm sure - Walter can't regenerate. The hole on his neck was closed like a cap on a flash drive. We can see how something moving under Walter's skin. Something moving. it's not a heal or regenerate. Just belay device.

Curiously, in the book, Walter can really regenerate. He can even regenerate a whole hand! And, of course, in the novel - Walter survived, not David.

As far as i recall i think some of the Viral stuff for Alien Covenant had indicated that WALTER Models can Regenerate.  I am not sure about in the Earlier Drafts but i think it mentions that Walter and David can both Regenerate.

I have NOT read the Official Novel so cant really comment but i would Assume that the Intention was to indicate that its David who is on the Covenant and Walter is stranded on Planet 4

It makes NO sense for Walter to be on the Covenant at the end, unless its Davids Soul in a Walter Body, i will have to try and Find the Interview where RS had indicated that it was David in Disguise.

But like i said i have not read the NOVEL so i cant say what the Ending was in that Book... i will have to look into getting it.

There is no ambiguity, as in the film. Walter stay alive in the end. And he will continue to develop xenomorphs. This actually makes more sense than David. Do you remember rumors about "Waltermorph"? It could be a great hint.

I think a lot is down to Personal Interpretation, especially when taking on board the Novels as often there can be Significant Differences were the NOVEL is Different, for example i had heard the ENDING is Totally Different.

Its a case in my Opinion that the Movie should be Accepted more than a Novel, in terms of IF the Ending or other Big Plot Points are so Different.  I also think that with Extras that were NOT in the Movie, they also should not be taken as Concrete... for Example the Egg Morph. (this does-not rule it out, but until its shown again it has to be not Considered 100% Fact).

I do think that it was Ambiguous i see No Clear Proof to determine WHO's Body is on the Covenant.  I think there could be Counter-Arguments due to Flaws..

I do However... think the Indication is ONE of these Options.

1) David defeats Walter and he Steals Walters Clothes and Cuts his Hand Off.

2) David defeats Walter and he Uploads his SOUL into Walters Body.

Going a route that is is 100% Walter would be a TWIST, it would indicate that in DESTROYING his Brother something happened and Walter then decides to see that David was right.

I think the Purpose of the Scene where Daniels asks him about the Cabin on the Lake is the Indication that this is NOT her Walter... it would be David or Davids Soul in Walters Body.

Regarding the Walter-Morph, this was the basis of rumor and theory that IF it is the Walter Model is Part Organic then maybe they could be part of HOW the Xenomorph eventually becomes Bio-Mechanical.

We cant say if there is ANY truth to this as a possibility, Chris was ASKED to remove a Few Topics/News about a Walter/Synthetic being used in the Evolution of the Xenomorph, so we have to wonder WHY it is FOX asked those to be removed?

It would be a bit of a Plot Convenience... we saw in Fire and Stone that a Synthetic Construct (Eldon) could be infected with the Black Goo, and so maybe Walter is similar in design?

I think regarding the Walter-Morph, we cant rule something like this out, but it could come from a number of avenues.

1) I think regardless of IF it is David's Body or David's Soul in Walters Body,  The Next Movie he would be Unlikely to appear with ONE Hand...  so either be a Walter Body with ONE Hand manages to Get a New Hand from Spare Parts (as indicated in the Drafts).... or if its David's Body then its likely he would UPLOAD his Soul into a Walter Model from Parts.

2) It is indicated that other Parties would be coming, and its likely that 1-2 of these would be Human Missions, its shown that for the Most Part we always see a Synthetic on board and so its possible we would see at least ONE more Synthetic, that is maybe more likely to be a Walter Model or Based off the same Technology.

So Potentially a Walter-Morph Plot could still happen.

Regarding Ridley comments. Like an extras and add materials - they are not on the screen. Not on the screen = not a part of a story. Not a part of a story = not a canon.

Regarding Walter/David in the end. I think this is done on purpose. This ambiguous gives more opportunities to the next film. Ridley/authors can can calmly think and choose the best option for the next film. Without another U-turns and retcons.

Certainly i think while Directors and Writers can mention certain things and plans...

Ultimately its what we see is what we GET...

Things Change as Each Movie comes along, and especially with each New Director, Fan Reaction i sometimes taken on board...

We dont know WHEN we will get another Movie, we dont know WHO will Direct the Next Movie, we know that we NOW have someone else in Charge (Disney)

And so any Sequel could change things... and its whats continued on, or replaced/changed that maybe we have to Accept.

Certainly a little Ambiguity does allow Freedom for a Sequel so your not PAINTING yourself into a Corner ;)

Which  Alien Covenant unfortunately kind of has done.

How the mighty have fallen. Of course the Director said it's David... he's holding the suspense. It's David and Walter because Walter accepted David's plea and killing his body took on his mind with the nifty little plugin David has in his neck and Walter lacked. Quick as that. Bam cut open the David and take the embryo's himself. The differnce of course between the psychopathic murderer and the next gen is that Walter recognised the need to create an army of Xenomorphs to handle the Engineer threat. 

David is David there is no upload when David grabs the kinfe it is to cut off his hand to mimic walter. There are limitations to Walters repair ability otherwise he would have regrown his hand. Walter is not expiered as David acting as walter tells Daniels when she asks about David. Walter is only incapacitated. David already had the embryos in his stomach. Both David and walter have repair abilitys walter more so than David. If you recall David can grow hair.