Oh, Donkey Kong Country Returns for sure. Looks like an absolute return to form. Although I no-longer have my SNES, Donkey Kong Country 3 was the first game I ever got 100% completion on. I was only maybe 10 at the time, so it was the first massive accomplishment in my gamer career. Of course, I've done it again since then [small]on an emulator[/small], but upon seeing the E3 trailer my nostalgia blinkers went on.
I'll probably also get the new Zelda; they're always excellent, but I think I'll wait for the reviews for Goldeneye, I'm a bit sceptical about FPSes on the Wii.