You know that feeling you got when you first went out on Hyrule Field in Ocarina of Time? Apparently that's not good enough. The next Zelda game laughs at that feeling you had.
It's going to be open world with a vast environment to explore (in Glorious HD, of course). The thinking behind it is that previous Zelda games, while open and free, were a selection of small areas banded together.
You couldn't cut through these boundaries, you couldn't approach areas however you chose to. With Zelda on Wii U, you will be able to.
According to Eiji Aonuma, series producer, this means the "puzzle solving starts as soon as the player thinks where they want to go" and it will "create opportunities for new gameplay".
It's also really pretty, but we don't want to get hung up on that. It's just hard not to. It looks amazing.
And that's before the laser-octo-robot showed up to battle our bow-wielding hero.