Zelda series producer Eiji Aonuma and team are working on a new Zelda game.

The producer's statement in the final pages of Hyrule Historia, as translated by Patas at GlitterBerri, sneakily confirms a new game is in development:

The long sailing time of creating Skyward Sword, a game to celebrate the 25th anniversary of the Zelda series, has just come to an end. The voices of those who’ve played it from around the world reach us. We hear their admiration comments, and their criticism too. All those voices become energy for the next voyage. Well, to tell the truth, we’ve already set sail in a new voyage.

While the sailing metaphor makes us wish dreamily of a game in the vein of The Legend of Zelda: The Wind Waker, it could of course be anything, either on 3DS or Wii U. Aonuma recently said that Wii U Zelda will challenge series conventions, potentially with unused Skyward Sword ideas, but what would you like to see?