Square Enix updated the teaser website of the upcoming Bravely Default smartphone game the BRAVELY DEFAULT FAIRY’S EFFECT. On the website you can see the cast list of the main characters, so yes, the game will be fully voiced (or at least the main characters).
On the list you can find Takuya Eguchi, Yuko Minaguchi and Takahashi Rie. More information comes later. Stay tuned.