I have to say, my expectations for Zelda U are hit-or-miss on this one, which is why I'm going with a "medium" class expectation for the game.
To be honest, I'm not expecting too much out of this one, not because I don't think it will do anything special on this game, but because I'm a bit puzzled on which direction Nintendo will take with the game. Now, like many of you all said, with Wind Waker HD already on the ropes, I am hoping for the more-realistic art style to return. To add to my personal wishes here, I don't want the game to be dark, but a balanced sort of tone, like OOT. Gameplay, I think is where the game has the most potential, and it is also where I find the big ambiguity for the game: the direction can go anywhere. If the graphical style doesn't insinuate rage inside the fanbase, the game changer will be in the form of the gameplay, innovative, or not. To be honest, I'm not too well informed on current Zelda U news as of late, so I can't bet on it anyhow. Due to my puzzled state of mind on the matter, I am more in the middle ground when it comes to expectations for the game.