Sony held in Japan a special GRAVITY DAZE event where they published the latest promotion video of the game and also announced the official release date (Japanese version).
The new GRAVITY DAZE 2 which this time going to release on PlayStation 4 only will be available from December 1, 2016 in the country for 6900 Yen + tax (package and download version) and there will be available a special Limited Edition also which going to includes the official soundtrack album of the game with 70 songs (BGM, selected special songs, remastered from original game). The price of the Limited Edition version is not clear at the moment.
Sony during the event also published a new promotion video which is the official release date announcement video! You can watch it above of the content. More information coming soon, stay tuned!