There were a lot of references to a lot of people in both videos.
Jericho, the obvious references have been posted all too many times.
The Rock, there are some of his catch phrases in it and references to him.
Big Show, (Big Show), though that's a stretch
Shawn Michaels, savior_self, Jesus Christ is the savior, save_yourself, that would be converting to Christianity, and Shawn Michaels isn't shy about his religion.
Stone Cold Steve Austin, as posted above.
So really, it could be anyone. I'm sure The Rock isn't coming back, nor Big Show, nor Austin, except for his appearances to "raise hell, leave".
That's not to say that any of them are returning more than the other, just that there's a lot of different people mentioned in there, so I don't know who to think it is. Though, of course, I am still heavily hoping that it's Jericho.