If it was 3DS I would say it was Majora's Mask, but since it's Wii U, I would imagine something from the Wii/GCN eras as redoing those textures will be less effort then all the remodeling for a HD MM. If I would hazard a guess, I would say Skyward Sword sans motion controls. Miyamoto had mentioned how people didn't like playing a whole adventure with them and there was plenty of feedback about how much better the art style would look in HD. And they would want it to have a second chance at doing bigger sales whilst also acting as an advertisement for the upcoming Wii U game (SSHD early 2015, LoZU xmas 2015). It's either that or a re-release of the Metroid Prime Trilogy to quell the desires of Metroid fans until the next big Metroid title, or if they are really daring, the black sheep Mario game; Super Mario Sunshine.

Ugh.. Don't even joke about it like that! >_>

Heh, since it first appeared on the Intellivision, more than 30 years ago, the circle pad still is source of love-hate, it's difficult to weight its pros and cons compared to sticks, sometimes even a same gamer can love it for some games and hate it for some others.

All of my N64 analogues are worn-out :'(

Mario Party?

 Mario Party 2's wind-up helicopter race!

Metroid prime or Xenoblade are the likely candidates. If its Zelda MM, Zelda U is completely delayed. I expect MM on the 3DS.

I do not think it's any Zelda or Mario game. I bet by Eternal Darkness, and my dream would be super metroid.

Actually, true.

Then it will be Sunshine.

Without more information, I'm just going to take this as "stab in the dark" material. If it's meant to be by Nintendo, then narrowing the field somewhat might make me more willing to think it's more than an educated guess. If it's meant to be third party, then saying so would at least go some way towards making me think there might be something there, and specifying the publisher, or the year that the original game released, or something like that, would make me really curious.

Is the Wii U going to get some sort of "remastered" game? Probably. And that's why I don't trust this rumour.

And no, neither Devil's Third nor Pokemon ORAS are enough to suggest this guy is truly leaking inside info. Devil's Third was a title that was being developed for other platforms, before suddenly going silent. Guessing it would be a Wii U exclusive was a good guess, but a few people had already speculated on it by the time this guy 'leaked' it. Pokemon ORAS was pretty much a given, yet people seemed to act as though he made some great revelation by hinting at them by saying there'd be two more Pokemon titles at E3... after saying that there'd be a big Pokemon Wii U title at E3. The track record rests on a comment about a third party title being Wii U exclusive and playing somewhat like Bayonetta 2... and I wouldn't say that Devil's Third is that much like Bayonetta 2.