I think it shows for all the Depth and Scope that Ridley Scott wanted to expand on the Franchise, some of these details come at the Cost of the Xenomorph which a lot of Fans still and will always view the Franchise has to be about and so everything else becomes a Distraction.
Ridley Scott had hoped that with Prometheus it would be a Prologue of Sorts that Sets-Up plans to explore something NEW that will Steer Away from ALIEN
FOX felt that Fans would not be interested in taking the Franchise off on a different Tangent and Away from the Xenomorph, its Origins and the SPACE JOCKEY event.
So they changed that forced us to have Alien Covenant is now setting up those fans to expect NOTHING but a more ALIENY set of Sequels that will lead to ALIEN.
I have to Agree that NOW they have named Prometheus Sequel with a ALIEN Prefix they have set the EXPECTATION to Deliver those Answers and Xenomorphs.
I feel this is the KIND of Direction they need to take, and thus the AC Sequel should be a Aftermath of "what kind of a World would David Build" much like Alien Covenant was a Aftermath of "where David and Dr Shaw go next and what they discover"
So you have to cater for the Popcorn Fanbase, GIVE THEM the $£%^$&^ ALIENS so to speak.
But then for the Fans who wanted the more Thought Provoking Elements, they NEED to cover these in Detail in NOVELS where Fans who wanted to delve into those Deep Thinking Scenario's can Discover via a NOVEL what happened from when Dr Shaw collected Davids Head in Prometheus to when David became ALONE prior to Alien Covenant.
Then another NOVEL to cover what David does from when he sent that ADVENT Message, what he does next with the Covenant, its Colonist and Embryos prior to WHEN things go to POT.
Finally if they want to explore other things DEEPER such as the Company, AI and Engineers then they could cover these with either TV Series or a Series of Graphic Novels.