I don't see it happening. I see Floyd fighting safe and potshotting his way to victory. Cotto isn't Victor Ortiz and has shown far far greater mental fortitude and a more refined skillset.
If Floyd didn't come out and let his hands go against Oscar in a such way, nor even little Ricky Hatton (who he eventually hurt wading in but never turned tiger and showed real aggression) i can't see him doing it against Cotto. This is a fight where Cotto doesn't have to take the backfoot, doesn't have to surrender the momentum, shouldn't be resigned to just trying to survive. I think he has the durability to eat what shots he has to and press forward.