*twirls speculation hat around index finger*
I speculate that we'll have a lot of PO'd fans posting here during E3. I really don't think Nintendo will show much new...we will probably get to see Mario Golf and Tennis, but those are no bigger than Mario Kart. We'll probably also see 1080, but it won't be the first time. If we're lucky, I think we will see one new game from Silicon Knights or NST, but I'm not counting on it. I guess we might see a new Pokemon game or Star Fox but I wouldn't count on that either.
Look at what Nintendo is already probably showing: Mario Tennis, Golf, Kart, Karaoke, Diary, etc. plus Final Fantasy, Rogue Squadron III, F-Zero, Kirby, Wario World and Pikmin 2...that's a major lineup considering the company said it was going to rely on third parties this year. Then again, that may just be lip service to make the third parties feel like the Gamecube is worth developing for. Hmmm...
*tosses speculation hat away before hopes get too high*