I pray that Nintendo will put an end to speculation on release dates and pricing. It's only 2-3 months to launch, I'd think they could come up with a reasonable estimate by now.
I also hope we'll see some more of Final Fantasy and Dragon Quest. I'm really interested in both games, but both seem to be under wraps. Are these really going to be ready for launch? Maybe in Japan, but what about here?
And hopefully there will be a couple of new games as well. I know Nintendo is working on Wii Motorsports, maybe we'll get a look at the jet ski mode. New games from Namco or Capcom would be great too.
These are just the things I want to see and hear. As for what I think Nintendo will actually say, I think it will reveal a few of the things I've mentioned, but the only thing I'm sure Nintendo will talk about is online and WiiConnect24. There might also be another secret behind the console or the controller. All of that would be nice, but to me it's just icing on the cake. I'm already sold on Wii, I want concrete details on the games and the machine now.