This dlc is like OA, and sadly that means if you miss anything, or if you run out of an item say cloud residue or throwing spears, you cant get anymore (I know you get normal throwing spears but I like these). But is it possible Obsidian could ever change the ending and let us come back ? Or aree we stuck ?

I think it could be easily done via a patch,
Just make that radio in the bunker the "door" to Villa.
But I doubt it will be done.
Bethesda could have done the same thing for O:A and MZ but they didn't.
Wouldn't hold my breath for Obsidian to do this either.

Damn, I want more residue and more spears