The first thing we listened to as the trailer for Breath of the Wild first played was a mysterious woman’s voice, which was the first time proper voice acting was ever used for the Zelda series. However, the game demo saw no voice acting whatsoever, besides those few seconds when we see Link waking up at the beginning, making quite a few think that voice acting would yet again not be present in a Zelda game.
Aonuma comes to dissipate any mystery, though, as he himself has confirmed that voice acting will in fact be used for the game. He refrained from saying just how extensively it would be used, leaving many curious. However, Link himself will remain silent yet again, as it has always been since the series inception.
We’ll just have to wait and see just to what extent voice acting will be used; if it will feature full on voice acting for every character, or just key characters.