I want...ANOTHER RPG!! I know, it's really an amazing suggestion. In all honesty Nintendo who could just spend more time revivng some of the old games like they did with Kid Icarus. We haven't had a new F-Zero game in like forever.

UAllpowerful

A real god game (God games are a subgenre of sandbox games where you are all powerful!) where the humans are in revolt and you must teach the a lesson! (For those of you have played Age of Mythology it's like having infinite god powers, and for those of you who haven't PLAY IT!!!) You are given a set of powers/curses you can use on the human civilization to make them obey you. Most levels are just a sandbox games, but you can play levels with a purpose and limits to your powers. Every human that obeys you you'll get +1 power points a second that can be spent on more powers and the more powers you use the more people who will believe in your existence. When enough humans obey you in a small area they'll build Shrines (+50 PP a second) or temples (+200 PP a second). You can also play throughout periods in history and locations. Be Jupiter for the Romans or Ra for the Egyptians! There's also a mode so as time goes on the civilization will develop, so start out with cavemen and dinosaurs and end up ruling cities with populations not entirely Human! You can also rule future space colonies!

The Happy Company

A visual Novel/puzzle game about a mysterious company called the Happy Company. The company does whatever it takes to make a person happy but in return that person must work for the company until he/she is able to make another person happy and the cycle then continues. The player takes control of various characters who end up working for the company and the player will follow their stories as they work to make others happy while also uncovering the secrets behind the mysterious company. The game starts off light hearted and simple but as you progress the story gets darker (as there is one person who's happiness consists or killing someone for revenge) and the mystery and puzzles get more complex.

Super JumpMad Bros

I don't care about new IPs, I just want another Star Fox!

a new 3D fighting game similar to either soul calibur, tekken or virtua fighter

Mother 3.
It might as well be a new IP.

A game where you can catch monsters and make them battle each other. I'll call it, "Digimon"

@zezhyrule You spoiled the ending for me >:[
@mamp that actually sounds... Interesting...

UPossess
You play as an angry ghost from the Catacombs of Paris who is trying to cause as much trouble for the living of the city as possible. As the game goes on more and more ghosts decide to help you and take their revenge on the living of Paris. You have many different spectral powers that you can use to wreck havoc on the people in Paris. You can posses the living to make them destroy their own city, cause machines to go haywire, move objects and light specific things on fire. As the game goes on certain Exorcists will come to the city and try to get rid of the ghosts plaguing the city.

I can't imagine a game like that having U in the title. Your ideas are interesting though:)

But now I'm out of ideas

I'd like to see their spin on a Hack and Slash or Beat'em'up top view game.

Honestly, I want Nintendo to try their hand at an Infamous type game. Obviously it shouldn't be anything like Infamous, it should set itself apart. But it would be cool, imho, for Nintendo to create a new character who is a realistic super hero type, like Cole McGrath, with a crazy ability like freezing time, teleportation or something else that's a little more obscure. The Vita is getting a game where a girl can control gravity, that is a cool concept, and Infamous were fantastic games, so if Nintendo did it right without seeming like they were copying Infamous, it could have great potential.

I would also love them to do what we've all seen possible for a long time now. Make a Mass Effect like Star Fox game that connects to F-Zero with alternate dimension travel story elements. Star Fox is something that has SO MUCH potential and could be done perfectly with a great story, but for some reason Nintendo hasn't cared to do it since Star Fox Adventures. A mature, epic Star Fox game would be amazing.

You made me think of an idea I had a while back. I'm sure I'm not the first to think of it, but a Pokemon MMO that encompassed every region would be cool. They have the game play mechanics down, and although I'm not the biggest Pokemon fan (other than the classic red, yellow and silver games ), Pokemon on such a massive scale would be awesome. It could be called PokeU or TrainerU or something.

But what are the odds of anyone using this idea btw my PitchWinPlay Idea was a billion times better (too bad PWP was cancelled) but I won't share that just yet XD

Oh Gosh.
If Nintendo ever made a pokemon MMO...
It would be an instant bestseller.

Why do so many ideas have to have a capital letter U thrown into it? If you're going to create an IP, you wouldn't want the name of the IP to be named after the console that it's on, because you would want the IP to live on more than just on one game console. At least, I would think.

I'm not a pokemon fan myself, but a pokemon MMO on Wii U sounds awesome.

Honestly?

An online Wii Sports with leaderboards and challenges.

That's what I wanted in the first place and the lack of an online system in the game caused Xbox Live to take over today.

Except I would like all sports from Wii Sports and Resort included with added sports and modes like "marathon". I would also like Wii Fit integration when you buy the game.