This morning at 9 AM EST, Satoru Iwata addressed the general public on the future of the Wii U. Along with a decent amount of news, we learned that a new Zelda that "rethinks conventions of Zelda" is in development. Also, an HD Wind Waker will come this Fall.
On the full page version of this article, you can see a direct transcript of the English translation of Zelda series director Eiji Aonuma's presentation, as well as Iwata's follow-up remarks.
Most notable of the details revealed are that the new Zelda will revisit ideas like linearity in dungeon completion and the idea of playing alone. If they're willing to make Zelda a multiplayer game (beyond, perhaps the extend of Four Swords), we may be in for something legitimately new. There is also some mention by Iwata that we will get to see some of the challenges the Zelda team will face soon, as in an Iwata Asks, though this could be a mistake of language.
As for the Wind Waker HD release, it sounds like the game will be adapted to the Wii U control scheme and potentially given a slightly-more-than-cosmetic overhaul on the level Ocarina of Time received with its 3DS release. My only fear is that the true beauty of Wind Waker may be lost behind bloom effects and soft lighting as seen in the released screenshots (which are not necessarily of the HD remake, but rather of a test case put together by the Zelda team while experimenting with Wii U hardware).