It would be dull blown spot-fest, and a terrible match, but a decent draw and I wouldnt be suprised if it happened. Who knows what the main event(s) at mania will be at this point but I think a Cena (heel) vs Batista (face) Smackdown! ME is possible if they choose to send Cena there.
The question is what will they do with their talent. Smackdown needs talent more than Raw, but if you send Cena over there and make him a heel, that leaves you with Edge and Orton who are both heels, and of course (rolls eyes) HHH and Shawn to work with...
For some reason I see Edge being in the ME defending and probably retaining the WWE belt for Raw at Mania, its just a feeling. But whos his face challenger if its not Cena? Certainly not orton. Hopefully not HHH in a 6th straight main event
. Jeff Hardy?! ...probably not..
I actually love this time of year because its so hard to guess, yet its not unforseeable