Im surprised nobody has mentioned Bisping after 3 pages. If Bisping beats Mayhem i think he has a legitimate case to a title shot. I'm not saying he would or could beat Silva, but he would be deserving of a chance if he beat Mayhem.
Aside from that i think the winner of Sonnen-Stann would also be deserving of a shot, and anybody who says they wouldnt want to see a Sonnen rematch is lying.
In an ideal world, I would like to see Silva fight GSP finally but that will never happen. Silva will continue to defend his belt against the likes of Sonnen, Bisping, and Stann while GSP defends against Diaz, Macdonald, Condit, and others until Silva finally retires into the sunset.