Awakening, Vickers, Engineers, Space Jockeys and Biomechanoids

I made a thread earlier regarding this topic which was for some reason never posted, so ill try again.

AWAKENING:

I got some interesting ideas for the next movie (which is rumored  to be Awakening, the bridge between Prometheus and Covenant). Im so excited for the possibility to see Shaws journey and their discovery of (what i presume) a subspecies of the engineers and their "paradise". Since there is 10 years between Covenant and Prometheus, there is alot of room for an interesting story. I was also picturing a parallell story where we follow a small rescue team who set out to explore what happened to the Prometheus at LV-223. This would set up for some nice Alien action as we would get to see the Deacon in its fully grown size (hopefully) and ofcourse the black goo wrecking havoc. Maybe also get more information of what happened at the base, what the engineers purpose was and exploring more of the backstory of both the engineers and their bioweapon. What i also find really interesting is the idea that they might find vickers and find out she is in fact a robot. I dont really find this that far fetched since the reason her not knowing it could be because she was an experiment by Peter Weyland. But i guess she must have been a different kind of android with red blood to make her believe the lie...

"PARADISE"

Another forum member suggested that the Derelict (in Alien) is a female reproductive system. I found this to be a really fascinating idea. Would probably also explain why the spacejockey in Alien is fused with the chair. The ship, the jockey and everything in it is in a way one living organism. 

I would love if there was in fact a "space jockey" race that created the engineers. This would explain the differences between the derelicts and size of the engineers. Maybe the engineers were just worshiping the space jockeys and mimicking their technology? The derelict in Prometheus/Covenant is clearly different than the one in Alien, much less Biomechanical and more "sterile and metallic". The derelict in Alien is so "lifelike" in a way it all hangs together (the biological look of it, the jockey fused with the chair, everything connected). 

Maybe this race is dead and when David goes to their homeworld he uses some of their DNA to mutate himself to be a bigger, stronger biomechanoid who can operate their ships (maybe becoming the spacejockey in Alien) which would make him vulnerable to the xenomorphs and alien pathogen.

Then he would use the colonists to produce the eggs on the ship.

I know im running wild here but i love these ideas. What do you guys think? 

EDIT: Updated the part about Meredith Vickers.