I must say, people have been bitching about Cena's version of the WWE title(spinner or non-spinner) for many years, but with good reason. it looks like a golden fairy crapped on it, hence the glitter look it has.
They will NOT return to the old belt, since its a new era, and they always move on. There were rumors last year that the new WWE belt will be platinum(like the WWECW title, but smaller), and I wouldn't like to see this, because its not the gold, that we're used to. A world title should have gold in it IMO.
I'm intrigued by people's ideas about how a new belt could be brought about, but I'm sure that Cena will go over Miz at Mania, and let the current WWE title design continue.