You know, I was thinking the Switch needed a really good FPS. Not Call of Duty or Battlefield, but something more original, maybe even exclusive. And not Metroid FPS, because that should be coming anyways. Maybe a Sin and Punishment entry, but true FPS, not on-rails.
Another thing the Switch needs relatively early on is a true horror game. I know they just did a Fatal Frame, so I'm not exactly thinking Fatal Frame, but something else in that same vein. Survival horror or something like that. I mean, aside from obviously Resident Evil, obviously.
Finally, to be perfectly honest, I think they should revive one of their old RPG franchises with a brand-new reboot. Maybe Golden Sun or Baten Kaitos. I don't see why those franchises are just dormant when they could be brought into 2017 with a bang.