Not sure how many more people have backed out, but I think that Wall, Boogie Cousins and Super Cool Beas will be the main attractions, while Wes and AR-15 will have some highlights. Wayne Ellington, meantime, will also be there to do, well, I really have no idea. His game it not the least bit suited for this type of game (I know, I know).
EDIT: Just checked the official website and Wall is no longer listed, but Derrick Williams is. We'll see.
EDIT2: No Cousins or D-Will in attendance. What a crapfest.