Nintendo has officially released a list of titles heading to the Land of the Rising Sun for 2007. Th list includes:
Keep in mind this is just a Japanese list, so not everything is certain to hit American shores this year. And a few titles already out in Japan will be hitting the States this year that aren't on the list such as Pokemon: Battle Revolution (June).
Check out IGN's article for more info: http://wii.ign.com/articles/784/784665p1.html