Meltzer is indicating the PPV looks to be doing in the range of 800,000, which if the case, is great numbers. Silva's PPV buys are usually in the range of anywhere from 350-450,000.
I think they will do Sonnen/Belfort in the winter and then hopefully if Sonnen wins they can do the next TUF based on Silva and Sonnen. Though who knows if Silva would be up for that, but he has appeared on the show before, so he might. But that would be a great season of TUF and more than enough time to build for the rematch and would do in the range of a million buys if this 800,000 is any thing to go by.