I dunno, I like the idea of a battle royal in remembrance of the "King Of The Battle Royal" himself, Andre The Giant. I'm a big fan of battle royals in general, it's a cool thing to do in Andre's memory and it's a good way to get as many people on the card as possible. Hopefully they book it on the main show instead of the pre-show (it'd make a great opening to the event, especially since it would happen right after Hogan comes out and opens up the show with an introduction speech... nothing more fitting than Hogan himself being the one to award the trophy to the winner personally.)
I'm guessing Big Show wins this, of course. Being the modern day Giant and all. (Or perhaps someone else comes up behind him and actually manages to eliminate him last, though I doubt it.)