Alien 3 and alien resurrection makes it clear all known encounters with xenomorphs stopped as ripley tookt he species out. but that means all known, we still have the derelight ship on lv 426 and then the planets we visited, we all just have to make sure those meetings between alien 3 and alien resurrection dont get any survivors or is secret and never revealed and it works.
Limiting but its doable and cant just ignore those movies and expanded material in my eyes
Terminator franchise show how bad it goes if you start rewriting and ignoring movies and doing whatever xD
Not a fan of the xenomorphs being made by David in the last 20 years but I think someone named those to be plagiarist Internecivus raptus, Davids copy of the original, unknownst to him, which the novel and other material seem to indicate, which would leave the door open for david to be creator of xenos and them being ancients as the same time, some of the paper rolls in the covenant movie seem to indicate this, but the movie says david made them so depends on what one follow.
But im starting to think that what happened with star wars and what the rpg book writer said: the canon is up to each fan to make, or else disney will have to go in and make certain what is canon and what is legends like what they did to star wars and make it very clear.
Someday when I get the time I will write down my own head canon on the forum with pictures, time line etc and including as much as possible of all games, books, comics and movies and how it fits together in my head
