Endless Ocean:  Imersion World.   I know it's not really a game per say, but I would love to go to a 3D world and play that game.   Imagine, being surrounded by all those fish, sharks, whales etc and just looking around everywhere.

Xenoblade Chronicles 2 is the only thing that would make me ponder it. I'm almost sure i wont be getting the NX at this point. I havent gotten as much from the Wii U as i would like to be satisfied with my purchase. With that in mind, i wont even ponder getting the NX until its a proven sucess.

New Ratchet & Clank.

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Ive said it a million times, Im dissapointed in the Wii U's mario games (I wanted a 64 mario part 2, or a galaxy game).
That and no new zelda game out yet? has me feeling abit burnt by nintendo.

So what NX needs is just a new fresh Zelda game + a real 3D mario game, at launch.
That would probably be enough.

Chrono #3 or a new Super Mario RPG, wouldnt hurt any either.

A new Fire Emblem game, plus Super Mario Galaxy 3 and Pikmin 4 would be more than fine for me, not that I can buy it on day one, after the Wii U no retailer in my country would risk bringing a Nintendo home console that isn't a proven money printer, like the Wii was.

For a Paper Mario TTYD sequel! Heck, I would even buy an Ouya for that game!

A new Paper Mario game or the next Mario Kart.

Next-gen Pokemon.

Gimme Paper Luigi and all will be forgiven.

I would buy Paper Luigi in a heartbeat. I bet it would be a million times better than Sticker Star and that Paper Jam crap that's coming out.