Snake is a Pensioner. I'm not sure whether I like this or not. He does look gnarly, though.

Edit: Alright, just watched the trailer and it's pretty damn impressive. But the possibilty of Snake dying is more likely it seems. Not only is he old now, but he appears to be ill as well. Possibly the FOXDIE? Maybe that thing he injected was a vaccine of some sorts to keep it under control. Who knows. Looked amazing, though.