So this is my first post here and i want to get everything straight. Please clear all my mistakes and doubts.
All the remaining possible Aliens from the whole franchise:
Alien 1: The Xeno is still in space.
Alien 2: The queen Xeno is still in space. The number of Xenos that remain on the planet is still unknown but most likely there are Xenos on the planet lv426.
Alien 3: Possible Xenos on planet F126? Only 1 face hugger got an ox. Maybe more facehuggers existed?
Alien 4: Umm..... Humans can now clone ripley and xeno queens. A more mutated alien-humanoid. Xeno infected ship crashed onto Earth (possible xeno survivors?). Ripley the human/alien alive.
Prometheus: A deacon still exists on planet lv223. A hammerpede did get into the throat of Millburn, possible xeno/neomorphs produced?, more hammerpedes on the planet.
Alien Covenant: Planet Unknown, Neomorph/xenomorph exist, David from prometheus is here? Shaw alive?
I'm assuming the Xeno's can live in space as they don't seem to be too affected by the nature of space. The only time i saw an alien die in space was in Alien 4 and that was ripleys and xeno queens mutated child that was killed by pressure rather than space.
Possible future theories:
I would love to see the hammerpede that got millburn in prometheus evolve into an alien. That alien could probably have followed shaw into another ship and killed her, and david crashlanded the ship into the Alien covenant planet.
Or maybe the hammerpede evolved into a queen xeno and followed shaw onto the ship and killed her then laid the eggs, david crashlanded the ship on lv426 and maybe escaped poded to alien covenant planet.
The other theory that I've heard from many people and i agree with is that Xeno Queens are only produced when the xeno's feel there are enough to make a hive.
Any Comments, suggestions, agreements, disagreements?