If Nintendo has been saving everything up for E3 (despite what they've suggested) then it would be an exciting three-way showdown. They're definitely going to need a LOT of content if they want to attract attention during this particular conference. I hope they reveal the Power Muffin Relay System.
I don't think they can afford to have any major games delayed past the holiday season, though. They'd better to be working their little elf employees non-stop.