I think they are gonna probably try to force Ryback down our throats and have him win The Rumble and I think by The Rumble Dolph Ziggler will be World Champion and keep it til Wrestlemania.
This may start Dolph Ziggler vs. Randy Orton vs. Wade Barrett for the World Title at Wrestlemania
Rock vs. Punk at The Rumble and Punk retains, after the match Punk is dumping on Rock and Austin comes out and that sets up Wrestlemania, Austin vs. Punk.
Cena will be frustrated about losing The Rumble and challenge Undertaker at Wrestlemania, this can setup a heel turn for Cena (I doubt if they do that), Cena vs. Undertaker.
Some how, Punk may lose the WWE Title before Wrestlemania (might be Sheamus since they love him just as much as Cena now) and that can setup Sheamus vs. Ryback for the WWE title at Wrestlemania
The Tag Team Titles may still be on Kane and Daniel Bryan since Cody Rhodes got hurt, if he is fine the belts will be on Team Rhodes Scholars at Wrestlemania vs. Prime Time Players.
Rey Misterio vs. Sin Cara at Wrestlemania, they will show conflict at The Rumble and start a feud.
