Aksys Games has announced that Tokyo Xanadu eX+ will release for PlayStation 4 in North America on December 8. The PC release date is still unconfirmed for now, as is a release date in Europe.
Update: Aksys has clarified that the game will launch day and date in Europe on at the same time as the North American release. The game will launch both physically and digitally.
Update 2: Ghostlight Games and Aksys Games have also now confirmed Tokyo Xanadu eX+ will be released for Steam on the same day as the PS4 release - December 8. Here's the official Steam page.
Tokyo Xanadu eX+ is an enhanced version of Tokyo Xanadu for PlayStation Vita, featuring more playable characters, new quests, sub-events, and a boss rush mode. You can find more information on Aksys' official website.
You can find our review of the PlayStation Vita version here.