**DO NOT READ IF YOU DON’T LIKE SPOILERS!**
WWE has begun to send out promotional materials for the 2013 Royal Rumble DVD/Blu-Ray packages and the following has been included in the press release, according to WWEDVDNews.com:
“Buzz is already building after the main event match-up announcement placing two mega-watt Superstars face-to-face for the first time since WrestleMania 28. The Rock vs John Cena for The WWE Championship.”
Obviously this has long since been the plan for the Rumble and WrestleMania but things can change on the whim of one man.