As much as I hate to admit, Weidman winning the belt is the best thing for the middleweight division. So many hungry contenders to test himself against, Machida might drop now, and I could also see Rory moving up.
If he continues to dominate, there could be talks of a superfight between Weidman and Jones. I feel that is much more likely to happen than Jones/Silva ever was.
Screw the "superfight"... he just busted the log jam at 185 and we've got some fights to see now.
I personally feel that belt is going to jocky around a bit. I don't see anyone in the MW division right now that seems unbeatable.