Not Shawn. Since christianity he's been steady and consistent Id hate anything like the stress from holding the title to screw him up. HHH has held the belt enough for now, but will again in future.
I gotta go with Rey Mysterio again, but as a heel. Rey needs a jumpstart, and you never know how good/bad he'd be as a heel unless you try. I remember back in late 80s Barry Windham was a huge whitebread babyface, but just blew up performance wise when becoming heel. Nobody saw that one coming.
Kennedy needs to go face cause imo hes topped out as a heel. The guy can talk, but if I have to hear another wrestler go on about themselves like a rapper Ill puke. The face change should widen his dialogue, and he might go up another level, but no title for him now until he does imo.
All that being said - they should resign Goldberg, have him show up at the Rumble as a surprise, and push him correctly this time around without HHH sabatoging him backstage. Hunter seems to be in a more team mode of late, and Bill would noticably help WWE - or maybe TNA?! That is an interesting possibility.