Vic is attending with Milo, but they won't stay long, because they have a late flight to Scotland to catch. He's going to be fairly boring and responsible and mostly just talking about the trip he's taking Milo on.
Eve might be on her way to LA, pending a log with Roman.
Ash is going to be there and is super excited because he loves Christmas. He's going to sing with Mark at some point, when everyone will discover how horrific a singer he really is. He's also likely to get hammered because he's still new to booze. Very open to him getting into some trouble over this.
Alex will be pretty much attached to Bex while wearing a reindeer hat.
Caylie will be helping out with the food and whatnot and doing her very best to avoid Lenore. Totally up for that not backfiring though!
Dean will be bouncing around trying to make sure everything's in order before he gets sidetracked by liquor, an amorous boyfriend, and a newly returned sister. It's entirely possible he and Gale won't be able to resist finding an empty broom closet...
Mike will be there, and actually in a good mood for a change. He will be plastered, as per usual. Also open to figuring out what that gets him!