Nintendo needs to expand and use all of their IPs on home consoles

[Cheebee]

Luckily, next gen, Nintendo will use a unified API with games shared across their systems (as officially stated by Iwata on multiple occasions), so that they will in fact have all their games on all their systems. :)

And that's not up for discussion, either, as it's the official direction they're heading, according to Iwata.