- Oct 25, 2017
It was confirmed about a month ago (during Tokyo Game Show) that the options to change both text and voice were removed from the Japanese version.
Based on the game installed size, the English voices are probably still there. There was a code for the Japanese "Cyber Gadget" Save Editor / cheat system that allowed the US / EU versions to run in Japanese. They've got codes available for the Japanese version, but alas no language code. They offer save editing for it as well, but I don't think it's worth spending $60 on their save editor when an English version of the game costs less than half that. Oh well.