Source: The Wrestling Observer Newsletter
At this time, WWE is currently planning out the top matches for WrestleMania 29. WWE SmackDown writer Michael Hayes has reportedly been pushing for a John Cena vs. The Rock rematch at the show, which would involve The Rock defeating CM Punk for the WWE Championship at the Royal Rumble and then defending against Royal Rumble winner John Cena in April.
Not everyone is onboard with the plan. The Rock is committed to work at the Royal Rumble and WrestleMania 29, but at this time it is unknown if he'll wrestle again after those shows. The feeling within WWE is that it might be better using The Rock for another high-profile match against a fresh opponent to get the most out of his appearances.