DS is selling too well. No new GameBoy, no DS2, maybe another DS redesign. For games, I hope New Super Mario Bros. 2 and maybe a new RPG (Camelot, where are you?). Maybe a new Fire Emblem.
For Wii, maybe some news on that DVD Wii for Japan? Some games, but seeing how it's such a small room, I'm not expecting much playable titles. I hope we get to know more about Monolith Software's titles, namely Day of Disaster and their (likely) Wii RPG. There's probably going to be some announcements regarding Wii Health, Wii Music and Wii Channels (Demo channel plz).