Vince McMahon mentioned the Donald Trump/Rosie O'Donnell feud this past Monday on Raw for a reason. The plan right now is to have a "Battle of the Billionaires" angle leading into the Royal Rumble between Donald Trump and Vince McMahon. The angle would culminate with Vince managing a wrestler who would face a wrestler that Trump would be managing. This isn't a done deal as of yet as both parties are still negotiating.
Believe it or not, NBC Universal approached WWE about putting this angle together back in November. Apparently, NBC is looking to improve the ratings for “The Apprentice,” which have been on the decline.
(source: The Wrestling Observer Newsletter)