It's going to have a greatly expanded library by having handheld games playable on home console and, in some cases, the reverse. Nintendo is going to be Nintendo's primary third-party.
Their secondary third-party will be pushing browser and mobile games on Nintendo platforms. A good strategy for Japan, though probably less so in the west.
Nintendo's priority will be conservative, low-power gaming. They will almost completely turn away from western AAA titles, as they simply won't work on Nintendo's next home console.
Features will be close handheld/home console integration, including cross-saves and cross-platform gaming. The home console part will be marketed as a hub and the whole unit will be marketed as a singular experience for optimal play.
