Sorry if this has been raised before in another thread.
All things considered, what would have been the impact on the stories of Prometheus, Covenant, Romulus and the upcoming Earth if these stories had all been set after Alien 3.
We could list out story elements that would have to change. But my feeling all would work just fine with minor tweaks to the scripts.
e.g. Peter Weyland in Prometheus could have been in stasis even longer, managing the company through his dreams for a century.
You could still have had the retro feel in Romulus by stumbling across an old derelict which is what happened anyway.