I think the 2015 date is already the delayed date.
They once said they wanted to have the new Zelda out in three years [after Skyward Sword]. When it's released in 2015, it'll be four years. That's pretty long for any game. Skyward Sword only took so long because they started out slow, making two DS games, and spending two years making a sword-fighting engine. Twilight Princess only because they decided in a late stage of development to make a Wii port after they were done with the GameCube version, which deliberately delayed to have a semi-simultaneous release. On top of that they could have already shown it at E3 last year, which means that now they have a whole lot more than what they showed.
I see no reason yet to think Zelda U will come any later than holiday 2015. I think it'll release then.







