I've always thought this is how they would get rid of the Spinner belt, it would make a lot of sense and would be a good way to get rid of the belt. Actually an even better way would be if the WWE were to take a trip down the Attitude Era lane and they had The Rock dispose of the belt by throwing it off a bridge into a river like how The Rock did with Austin's Smoking Skull belt...or he could just throw it into the Boston Harbor to swim with the rest of Cena's merchandise that he threw in there earlier this year, that would be a huge slap in the face to Cena. Instead of Rock unveiling a new championship belt though, how about he bring back this?
Not permanently (although I wouldn't mind if they did bring it back permanently), just for The Rock's title reign only to get everybody especially the AE fans more invested in his title win and to get them more excited & interested heading into Mania. And think of the heat Cena would draw if he were to win the belt cause no AE fan will wanna see him wear that belt, just imagine how much everyone would blow up over it. After Rock loses the belt, they can introduce a new design.
Personally though, I'd prefer it more if Punk just unveiled the new design once he hits the 1 year mark after Survivor Series, and he retains the belt at Royal Rumble just to give the fans a huge shock because no one is expecting him to retain and because they don't really need the WWE Title for Rock/Cena II. Just have Cena cost The Rock the WWE Championship at Royal Rumble and the match is set. Rock/Cena II will sell like crazy on it's own. Whoever wins the Royal Rumble could use the title victory over Punk more than The Rock does. How over would the winner be if he were the one to go on to end Punk's streak on the grandest stage of em all?