I thnik it could be fun to put wrestlecraps like Shockmaster, Bastion Booger, Mantaur, Xanta Claus, Max Moon and such^^.
More seriously, I think they could bring back the ability to wrestle anywhere in the arena... I mean Really ANYWHERE, not only making Parking Lot Brawl matches or this kind of stuff but like in Smackdown Shut Your Mouth giving the players the opportunity to go in the corridors, in the managers locker, the boiler room, the World' s restaurant, going out in the city, using the subway, etc and be able to go from one map to another by going to a specific place and press a button.