Well, if you count PC, Maxis sold well over that with The Sims.
If not, it's worth noting that the only game this gen to sell over 10 mil in one region is Wii Sports, and the enormous majority of that came from the fact that it was bundled with every non-Japanese Wii. It wouldn't have crossed 5 million if it wasn't bundled like that.
For that reason, Wii Sports Resort will not do particularly well.
I think the real question is whether any non-Nintendo game will be able to sell 10 million on one console worldwide. I say Gran Turismo 5 is a candidate. So is Halo 4, if they ever get around to making it. Of course, 'they' wouldn't be Bungie, so it wouldn't be as good, and sales would suffer as a result.
I believe the closest a non-Nintendo game has come this gen is actually Halo 3 with some 8.2 million. So not far off.
I think, were GTA4 exclusive, it would have a chance of cracking 10 million on the PS3 eventually.
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