That's a question of speculation. I honesty don't mind the wind waker cell shaded graphics, it gives the potential of beautiful cell shading over alright looking realism. Kind of makes you wonder what Zelda would look like if it had the oppertunity to be on something with a little more umph in hardware.
Even if say a Zelda did come out with the potential of being "better" than Ocarina, no one would ever admit it. It's an absolute classic that will always be cherished as such. I regard it as the best, because I hold fond memories of it when I was younger. As for revolutionary... that seems to be the bar set for wii games right now.. Something that will wow us all.