Rumors for the Day:
As it stands right now, Batista is going to win the Royal Rumble. It's at least possible that CM Punk lasts all the way until the end before some Authority related shenanigans lead to his getting ousted, pushing two separate storylines along: Punk leading to his match with Triple H at WrestleMania 30 and Randy Orton getting even more paranoid thinking The Authority assisted Batista's victory.
Sheamus is not currently scheduled to return in the Rumble match, though it's still possible WWE is just keeping a tight lid on the plans for him. There will need to be a legitimate threat to win the Rumble match outside of Batista and Sheamus could be used in that role as a late entrant who isn't asked to do much.
For those hoping he would pull double duty, it doesn't look like Daniel Bryan will be entering the Royal Rumble. Sorry!
Actually, Bryan is scheduled to team with John Cena to work some 2-on-3 handicap matches following the Rumble event. That seems to indicate Randy Orton will win the WWE world heavyweight championship match and go on to feud with Batista over the title.
Roddy Piper basically confirmed to Stone Cold Steve Austin in a recent interview that WWE is, in fact, hoping to put together a match involving himself and Hulk Hogan at WrestleMania 30. Read more on that by clicking here.