Also, if they are indeed holding back the NX until March 2017 because they want to have a strong launch lineup of games, that's absolutely the correct decision. They've already got a potential winner in The Legend of Zelda: The Plains of Enormousness. Rumor is that Wii U Smash is going to be an NX port, which is also smart. Lol, throw in some more DLC to that particular game (Shovel Knight & Shantae please) and you'll have people hook, line, and sinker.
And honestly, just give people what they want to start out. A new F-Zero, a new Metroid, a new ProtoMan game, a new Mario game, and boom. Instant sales. Make it where Sun & Moon connect to a new fully fledged Pokemon NX Coliseum and boom. Money. Hell, Capcom supposedly wants to make a Nintendo vs. Capcom fighting game. If Capcom wants to do that, there's absolutely NO reason why Nintendo should say no to that.