Siliconera commenter and contributor Denpa no Sekai noticed something was missing in a menu screenshot from Phantom Brave: We Meet Again (thanks for the tip!!). There isn’t an option to switch from Japanese to English.
We followed up with NIS America and were told his hunch was right. Phantom Brave: We Meet Again will only have English voiceovers. While the Wii version lacks the voice option it has revised controls and a new scenario starring Carona, a cool Marona from an alternate universe.