I'm expecting a few movie skins.
Gort (since it was at least intended for P1), City Hunter, Damaged Jungle Hunter mask (like in Predators), and Fugitive.
If AVP was represented similar to Jungle Hunter being used for the Hunter skin, Berserker would use the AVP Predators while Wolf would be used for Scout since he's less armored. While Scar and Jungle Hunter do have slightly different masks I can imagine it might cause a bit of an uproar if they included Scar so it'd probably get representation through Chopper and Celtic.