Well, figured I’d “call it” for the expansion DLC about the next playable character, because why not.
In the game there’s this cutscene:
It’s a bit strange that they’re using all other playable character models - Farrow, Bormin, Dux, Selma - but then there’s that moose-in-a-jar. It could easily have been Magnus instead! Bormin’s voiceline (as you can see in the screencap of the cutscene) even mentions Magnus - but he’s nowhere to be found in the shot itself.
And finally the area “The Lair of the Horned Devil”, which may have been a relic of where the character would have been introduced in the first place, but was cut out before the release of the game I’m guessing.
It’s a bit of a strange area, as I was expecting some kind of moose-like bad guy (a Ghoul with some junk screwed into his skull at the very least) based on the name alone as it implies a person of sort being the “owner” of the Lair. Had it been the poster alone I’d discard it as just the theme of the area, but the ghouls themselves used it as their symbol, but the during gameplay I didn’t really hear anyone in the camp really mention it.
Having a playable character seen as the leader of gullible ghouls because his likeness was on the posters seems like a pretty classic character introduction.
So my prediction is as such - a moose mutant!