My theory about the link between Paradise and planet earth.

It's a logical theory, but I think the planet in Alien: Covenant is not the Engineer homeworld. Just another terraformed (?) planet with a similar fauna.

@Ati definitely agree. It's been said several times by those "in the know" that the A:C planet/moon is NOT the Engineer's homeworld. That idea was planned WAY earlier, before Prometheus hit, but the plans have changed...

And we don't know the name of this planet, I think it's not Paradise, just a paradise... :) To be more precise, it seems to be a paradise. :)

Yes I got a little rushed when I described the planet Paradise as the native land of the engineers. Nevertheless I think that this planet must be important for the engineers and I remain convinced that the Earth was terraformed by the engineers like the planet Paradise. In my opinion: Planet Earth was conceived in the image of the planet Paradis or these two planets are the images of another green planet. 

Hopefully they dive into that some.

Nice topic. I don't know about the planet, but the idea of the humans being Engineer's descendants is very attractive and plausible, no doubt. Would explain the rage of the Engineers against mankind, if we think about some kind of 'bad retribution' from us, or something in those lines. Like they were saying "c'mon, we spend all our knowledge to create you guys, and that's how you pay us back?"

Maybe humans have tried to overcome the Engineers, their creators, breaking an existing Covenant between them?

2 hypotheses. Is the Earth designed to serve as a reserve for the genetic heritage of engineers through the human being? In order to safeguard their race from a civil war or a more dangerous threat .... Or engineers have designed the earth and men to serve as a petri dish has a xenomorph infection?

I like the theory!

Yeah, I think the Engineers are using/making these terra-formed worlds as grazing pastures for humans/animals. They can grow as many creatures as they want...but they need a large planet sized petri dish to observe and codify their results?

Also...Why are David and Shaw on this planet?? Weren't they headed for the Engineers homeworld??

I think it's worth remembering that we are only on this journey as a result of ancient cave drawings showing giants pointing to (inviting a visit) to a star system - that means they visited earth many times after humans evolved and so reasonably it follows that some humans, animals, crops & fauna would have been taken back from those visits - much as we have done through our own history - many crops grown around the earth were indigenous to single continents and were 'brought back' by explorers!

@Bworko

Indeed it could be very likely.... the Engineers or at very least those beings above the Engineers could certainly posses Advanced Terra-forming Practices.  And maybe they also seed many of the Plant Life too.

As far as Paradise not being Paradise, well this was the idea they originally had... and from the Source i had, this indeed was the case...

I dont know if they have Changed this since John Logans Alien Covenant... 

But i was informed that Paradise was in effect the Paradise in the Bible as far as the Garden of Eden but it is shown the Biblical Events of the Garden of Eden Did-not take place on Earth.

As far as the Homeworld of the Engineers, this place was where the Last Engineer said he came from....

Now if you was say a African American or a Asian American, and  you went on Holiday to say New Zealand and you was asked where did you come from...

You could say America the USA.... which is correct but then you could have said Africa/Asia too.

So i think it will be kind of the same as far as the Engineers goes, the Engineers on LV-223 would have indeed at one point called Paradise their Home..  or they could indeed had the role of Guarding this Place like the Cherubim Angels role was in context of the Bible and The Garden of Eden.

The Scope for the Engineers or at very least those above them is more than Galactic

I was informed that Paradise was the Cradle of Life as far as related to Humanoid Ancestors, and that as far as those above the Engineers... Paradise should be looked at more like a Headquarters for our Galaxy... or maybe at least this section

A number of people are looking into Ridleys Comments well the set up for the movie that Paradise Begins in Hell, as maybe the next movie we will go to Paradise a different place.

Maybe?  But i would assume David would have taken Shaw to where these Engineers had came from, but we cant rule out him going to some other place.

However i do think David went to were they came from, as far as what we would call Paradise.

We have seen Ridley let slip the next one is Awakening and it fits between Prometheus and Alien Covenant...  we dont know which timeline this could be...

Prometheus had TWO event timelines well Three... the Main TWO relating to LV-223 which was the events of the Prometheus Mission at the end of the year 2093 and the other was the Aftermath of a Event that happened 2000 years ago that befell these beings who came from Paradise.

So we can assume the next movie will in part cover events of between Prometheus 2094 and Alien Covenant 2104 but also it could explain the relation between Paradise and LV-223 as far as those beings (Engineers)

And so if Paradise is now a Hell... at one point it was not a Hell, and the next movie could likely take us to a time when it was not Hell.

This is unless they have completely changed the Plot and Ideas with the John Logan Re-writes.

"but they need a large planet sized petri dish to observe and codify their results?"

Indeed and i feel this is what LV-223 was... this place was where the Engineers set up shop to Watch over Earth and other Planets that are more local to LV-223 (by Local with regards to Engineers this could be a massive distance)

LV-223 is maybe the place they observe and then collect samples and Test/Evolve them and then re-seed the desired results back to the Planets they are watching over.