Catherine: Full Body will be a PlayStation 4 exclusive in the West, the game's official English site confirms. In Japan, the enhanced remaster is set to release on both PS4 and Vita next month, but that won't be the case elsewhere. Sorry, Vita fans.
Full Body doesn't yet have a release date outside of Japan, but the English site says it's "coming soon". As such, it's probably safe to expect an announcement in the near future.