DanteZX:
I think you could be on to something. Splatoon is a great game, but there is so much more they could add to the game. Including a 4 vs Team mode.
But, most importantly Nintendo needs a competitive game for launch that will get people excited for jumping to a new system. Personally, if I was Nintendo I would have NX launch with Splatoon 2, Mario Kart 8.5 or Mario Kart 9, and Zelda. 2 huge multiplayer fan favorites and Zelda. Mario can come next year. Metroid could be the November 2017 holiday game.