I think we'll see and learn more before then. Games? I don't know. I'm actually content with what Nintendo has shown me. Realistically, if Revolution lives up to what Nintendo is promising it won't matter anyway, any nonbelievers that go buy an Xbox 360 will be replaced by new people looking for an experience they can't get on either of the competing systems.
I think Nintendo will show something before E3, though. The company has become much less secretive. It used to be that you could expect to hear almost nothing between Christmas and E3 except for games that were actually being released in that period, but lately there are no surprises left at E3, they give them all away during the first quarter or so of the year (kind of disappointing, in a way). My guess is they'll show one or two key games at GDC or some such in spring. Between now and then, there will be a steady trickle of rather boring information.