I think it's cool. I have Sands of Time and Warrior Within for the Xbox but I haven't even played Warrior Within yet, nor have I gotten very far in Sands of Time. It's a really good game from what I've played, but I just have far more games than I actually have time to play them. So The Two Thrones on Wii sounds pretty good to me -- I can scratch the Xbox version off my Christmas list and just get the Wii version next year.
Would be nice if it's released at a "greatest hits" price point, since the PS2 and Xbox versions should already be available at that price. I'm actually pretty excited about the idea of Wiimakes, so long as they aren't full-priced games.
Imagine The Wind Waker: Special Edition on the Wii. Keep the same graphics as the GameCube version, but implement the controls from Twilight Princess. Perhaps tweak the difficulty a bit by making enemies and environmental hazards cause more damage. And if possible, restore the two dungeons that were cut from the original release due to schedule requirements and tone down the whole Triforce & charts bit at the end that was likely included to replace said cut dungeons. I'd certainly buy that for $30 CAD.
Or a Metroid Prime: Special Edition that includes both Echoes and the original game, retrofitted with the control scheme from MP3: Corruption.