Apparently Machida vs. Phil Davis for UFC 140 in Toronto, but then Dana White shot it down by saying that Davis is still out with his injury. I think it would be a good fight, and would put the winner at the top of the weight class with Hendo, Shogun, and Jones obviously.
Speaking of Hendo, he says he wants to stay at light heavyweight, doensn't like the weight cut to middleweight. But if he were to drop down, it would be to fight Anderson Silva. I'd pay to see them scrap again.