I'm always incredulous when a fighter at nearly 36, with a looooooong history of PED use and innuendo looks alot better than when he was three years younger at UFC 103 against Franklin, whether it was at 185 or 195. That said, Vitor looked shredded at the weigh-ins at the Akiyama fight, but after he sidestepped the whole TRT thing last week, I think he's a prime target.
This was Vitor at MW on the second Affliction card, I think there's a marked expansion of his pectoral region since then, but as you can see, he's still cut as all hell.
I don't know, but it really wouldn't surprise me.