Well, with all this talk about cell shading, I think it's important to think about this:
Cell- shaded WW looked a WHOLE OT like OoT. It was clearer, and more defigned, but it was OoT. (And MM)
I don't think cell shading was enough to make WW innovative in the Zelda series. It will be remembered as the game that came after OoT..and that's fine - it is, after all, a sequel.
But I garentee that the next zelda game will not be such a similar game to OoT and MM.
Nintendo is putting the emphisis on innovation this coming year, and I think they are going to have to redefine Zelda.
That means a complete gameplay style change. It could be more dungons, less exploration, no more z-targeting, all talking and towns, or something else totally unexpected.
You won't be seeing an other Wind Waker, or a game that goes .. "And THEN Link goes somewhere else, and saves it."
Think different Link, Different world, Different style.