I said it's iffy because it depends on how Nintendo deals with it, they can't deal with a Wii2 the same way they dealt with the Gamecube>Wii changes, so their future support won't work the same way as Microsoft or Sony's will. And having a die-shrunk combo-chip for legacy gamecube/wii support like the PS3 has the PS2 chip will add to the cost, something Nintendo managed to avoid this round, but won't the next.
Nobody is crazy enough to accuse me of being sane.