I keep forgetting that E3 comes later and later in the year these days.
Nintendo's Q3 financial report shows a first half 2009 Calendar Year release in NA for both Punch Out and Wii Sports Resort, so I think that Pale's right, these games will have just been released by E3. It doesn't mean that Nintendo wouldn't make a big deal of them at their show though.
I'm curious as to what Nintendo's big third-party game(s) will be. The Conduit, HOTD; Overkill, and Madworld may all already be out by E3 2009. It'd be very exciting if it was some big Motion Plus surprise project, maybe Red Steel 2? Or maybe it'll be an RPG line-up? Or a survival horror line-up?