The game is still due to launch in Japan in the first week of July, but its release date is listed as TBC on Sega's US and UK websites.
Platinum said on its website that the game has been completed and localised, but that the studio's unsure when it'll be released in the West.
"Sega has decided to change the date to TBC. While our work on the game is finished, localised, and ready to go, as publisher, Sega gets to make the final decision as to when it is released.
The Japanese release date, however, remains unchanged for July 5, 2012."