Ummm, the Rebirth tech demo was pretty much all FMV. It's not an indication of what the Gamecube can do, let alone the Wii.
The Perm: I'm going to have to say no. I could be wrong, but Rogue Squadron was a first gen Wii, and so far nothing released or announced for the Wii has touched it, graphics-wise. We might get shorter games that look that good since there'll be more resources to devote to it, but I wouldn't expect any sort of epic game to look that good.