We both lose if there's nothing new that comes out from this investor's meeting.
It's the end of the FY. They have to give forecasts for the next FY, if nothing else. From that, we can probably at least deduce if there's a 3DS revision coming. The next day's presentation should also be discussing NSMB3D and possibly other large games planned for the FY.
It's not E3 for new news, but it'll have new stuff in it.