I'm almost positive that they'll pair Bisping with the winner of Weidman/Boetsch, and that the winner of that fight will square off against Silva for the title. Anderson clearly wants GSP, which is all well and good, but he can't pick and choose who the number one contender in his division is. I suspect he's saying that he wouldn't fight Weidman today, but were Chris to get by Boestch and Bisping, his tune would likely change.
As I said in another thread, it's quite sad coming from a guy who received his title shot after one fight in the UFC. Against Chris Leben no less.
Edit - Anderson only fought Sonnen after Chael re-cleaned out the top of the division. I give Silva respect for stepping up against Bonnar on such short notice, but he and Ed Soares have always been selective with respect to opponents.