If it is an attempt to join the twins and be a multiplat machine, Nintendo needs a grand slam. 1st party games that capture the imagination of young and old alike, a competitive price point, and good advertising.
I don't think it will be that, however. The inevitable gimmick had better be good this time around, though. One that 3rd party (hell, 1st party) will actually use. One that doesn't piss off players, like unnecessary motion controls or eye-drying 3D.