While I'm busy recapping my various feelings, Silva's loss means that all the nonsense around "superfights" is off.
Mostly, superfights are a stupid idea. If Silva wanted to fight at welterweight, he would have fought at welterweight. If GSP wanted to fight at middleweight, he would . . . assuming either fighter could either cut the weight or gain it to meaningfully participate in the other weight class. We will no longer be subjected to the spectacle of Anderson Silva wanting to fight GSP, while dodging Jon Jones. We will no longer see GSP make excuses about why this isn't the time to fight Anderson Silva, where he'd probably have twenty or twenty-five pound weight disadvantage . . . which is, no doubt, the same reason why Silva wasn't so hot to fight the bigger Jon Jones.
Now that lynchpin is pulled. Silva is no longer desireable as some sort of superfight contender. GSP won't be dodging him, Silva won't be dodging Jones. The fighters can fight at their own weight classes and I'm, generally, comfortable with that.
(Yes, I KNOW that boxers often fight above their weight classes. But boxing isn't like MMA in some serious ways, in this regard. In particular, there are several promotions that have a fair bit of credibility and because boxers have so much control over their opponents, they can sorta . . . pick and choose. And they do. Which has it's good points and bad points, but boxers fighting above their best weight is often akin to something that can never happen in MMA - it would be like GSP going over to Bellator and kicking Alexander Shlemenko's ass. It changes the complexion of fighting at different weight classes entirely if that sort of thing was possible. The UFC dominated top talent in MMA, so there's no fudging around the different promotional championships to look for different kinds of championship fights. I'm not judging the way boxing does things, but boxers do have this privilege. So when Manny Pacquiao goes up in weight, he decides, more or less, who he's going to fight, not the guys who run the promotion. This is a huge difference between how fights are made in boxing and how they're made in MMA.)
So, now Silva can either focus on a rematch with Weidman or take other fights, almost certainly as a middleweight, GSP can worry about dudes like Hendricks, Ellenberger, MacDonald - he's got things to do at welterweight, which has a large talent pool. Jon Jones can beat up more people at light heavyweight, if they can find them, or go up to heavyweight without the specter of a "superfight" looming. Let's set about that business.