Yeah I know I'm flogging a dead horse but I came across some fan theories that I thought was interesting insights...
1) The Engineers (as seen in Prometheus) would visit various planets & if seen fit, would create life. They would then revisit the planet hundreds of years later to view its progress...
If they didn't like what they saw...war, famine, pollution, greed they would destroy the planet & possibly start the recreation cycle all over again.
Like the flood & Noah's ark.
David (in Covenant) discovered The Engineers were planning on revisiting Earth to destroy it & decided to kill off The Engineers before they could send a ship to Earth.
Even though David still had a hatred of humanity...he wanted the humans on Earth to destroy themselves at their own hands.
2) David didn't kill Shaw.
At the end of Prometheus, David is seen placing Shaw in a stasis pod but she is sick, feverish & wrapped in a blanket...apparently sick from a droplet of black goo in her uterus from her hurried caesarian operation.
In Covenant, all the experiments & flashback images of Shaw's vivisection was in fact David trying to save her.
And when he realised he couldn't save her as a human being, he then tried to change her into a human hybrid to stay alive.
Interesting theories. But why would there be so much unneeded deception in the storytelling in Covenant? "Oh, just kidding, what actually happened was..." Anyway I don't see them thinking it out well enough to save this franchise. They'll have to pull a miracle out of their asses if they are going to pull this out of the fountain of fail.
Damn. I was actually super excited for Ridley's proposed Covenant sequel featuring the Engineers returning to their home planet to see it devastated...I really want to know more about the Engineers and see more of their culture and lifestyle, but I guess that's just wishful thinking at this point and will have to live on only in my imagination
He's still doing it but from what I read they're doing a reboot which they probably need to. Not that butt hurt fanboys who hated Covenant will be any happier until we get the 10000th film of someone knocking a Xeno out of an airlock. That when they could reboot by exploring the Dark horse comics, reboot he AVP franchise, or find writers to explore the Prometheus ideas. The fanbase for Aliens are as bad as trekkies
__________________ "Though flesh may fade and mountains may crumble, the lessons of the Jedi never grow old"-Obi Wan Kenobi