Just a small note,
Nintendont on the Wii U wouldn't be emulation as emulating Gamecube would be extremely hardware intensive, but rather, virtualization to ensure 100% compatibility on Wii U mode.
Honestly, I think
Nintendont is better off staying in the vWii, its reached dang near close to 100% compatibility and the likelihood that Nintendo will bother to patch anything in the vWii at this point is slim to none. They're going to be more concerned with U mode especially with the kernel exploit release being imminent. Also given the fact that
Nintendont already runs beautifully in vWii mode, I fear running it with the enhanced hardware U mode has access to (more RAM, better graphics, SMP, higher clock speed etc) might actually "break" nintendont.
GCN games are already running at approx 1.5x the speed they normally would under nintendont (which is fine, doesn't really cause any problems, difference is negligible), but if you run it with full access to the Wii U hardware, its going to be some serious overkill.....