I honestly don't see the problem with their first-party lineup. Having full-fledged games ("real" entries, not sidegames like Hunters or Four Swords) from four of their biggest franchises (Mario, Zelda, Metroid, and SSB) and a spinoff with online from their fifith really big one (Pokemon) in the first year is a pretty tall order. They've also got Fire Emblem, possibly Super Paper Mario, casual stuff like Wii Play, and a few lower-tier titles like Battalion Wars.
The fact that there's only Mario Party 8, Wario Ware, and Wii Play in the first three months is admittedly a bit troubling, but the lineup for the whole year looks pretty good to me.