Three likely choices for me are Ryback, Daniel Bryan and Randy Orton. I know some will argue that Ryback has a push going on already and that Orton isn't exactly a new guy to push to the world title picture, but money in the bank can also be about finding a way for guys to make it back into the main event. You can't expect two brand new guys to be pushed hard to the main event every year and there's two briefcases to go around anyway.
So, I can totally picture Ryback winning the briefcase for either title. Would be a good follow up to his feud with Cena for him, since he'd go right into another guaranteed title shot that he could grant himself at any time for the next year. I can easily picture him carrying the briefcase for awhile too, always taunting that he could decide to cash in at any moment.
Daniel Bryan is on a mission to prove his worth and winning the briefcase and having a one year shot at a championship is a way to certainly boost his confidence.
Randy Orton said in an interview that he wants to reclaim one of the world championships, which might be a clue that WWE is preparing to push Orton back towards the top. The company sometimes has guys mention things in interviews in non-kayfabe ways to throw hints at people of future things happening.
