Reposting from Discord so excuse grammar and all that stuff.
My ideal Alien Isolation 2 is set in a colony planet
you are basically in Newt's shoes, except you are an adult with some gun training
You can loot guns, but using them is not worth it, non military weapon hardly hurt the Aliens and just piss them off
you need to face off against other humans, wildlife, androids and ofc, the aliens
instead of a singular alien chasing you through the game, each area should have multiple set aliens, some of which you can kill via traps and even by looting Colonial Marine weapons with limited ammo
the ammo is entirely missable and missing your shots will just scare the alien away or piss it off instead of killing it
4 different alien enemy types, Drone/Stalker, basically stompy, very smart and independent, prefers sneaking on it's prey. ; Warrior, also smart but doesn't care about being injured so it's more likely to rush into danger, slower and less stealthier than the Drone, it will call it's brethren to it's location if attacked. ; Runner, fast but more fragile, born from the wildlife and animals the colonists brought to the planet, where there's one there's likely to be another. ; Facehugger, extremely fragile and not that common, found around nesting areas, where there's one there's always more.
All are killable with some needing more strategy than others, all can instantly kill you upon getting you, you aren't a soldier or a badass, just a survivor, although if a Drone or Warrior get you, as long as you haven't pissed them off they'll take you to a hive to cocoon you, while Runners will always kill you.
burning, shooting or catching one in your traps will leave them injured, since the number of aliens in the game would be set, they would have scars from their previous encounters with you, aliens that have seen you before and survived will look for you more than the ones that haven't