You are totally right, no way the BIG title for Wii this Chritsmas is Zelda. Given the fact that Pikmin 3 is not so popular to consider asking Gamestop to reserve shelfspace, the only option left is our worst nightmare: Wii Fit Plus is the BIG Christmas blockbuster.
But if they can do a good Zelda I forgive them. I was quite disappointing about Twilight Princess. It was set to surpass Ocarina of Time, and it is evident it didn't. I mean, like Miyamoto said, it was a good game, but something lacked. The story sometimes was weak and incoherent.
If we are going to wait more years for the next Zelda, I expect them to create something incredible and never seen before, but please, don't shift resources from Zelda team to other 'minor' quality projects like Wii Fit Plus, just let people make a good work....and Miyamoto, support them. And please, the next Zelda must be ONLY a Wii title, not delay it so much so this way you can use it as a launching title for the next Nintendo console, just like they did with Twilight Princess.