I personally don't like the wii, and am glad that most publishers/developers are not putting lots of effort into wii games.
I hate waggle, and never understood how shaking a wiimote was better than pressing a button.
I have a wii thats been sitting in the corner for over a year, and the only feeling I have for it is that I am sorry I wasted money on it.
With that, I don't really think any AAA dev will really want to put their game on a gimped system. It's the exact same reason you don't see AAA devs making anymore ps2 games - they want to move onto bigger and better, and seems like they think like me - that the wii is not any better than last gen, and they cannot make the games they want on it.
Fine by me, and the only thing I can recommend wii owners to do is buy a current gen console, and stop wishing for whats available on the other consoles.