Only for PS3, says Square Enix.
Kingdom Hearts HD 1.5 ReMIX will be released for PS3 in Europe this autumn, Square Enix has announced.
The release includes HD versions of Kingdom Hearts Final Mix and Kingdom Hearts Re:Chain of Memories – never previously available in Europe. The games will also be updated with enhanced gameplay mechanics and PlayStation 3 trophies.
In addition, the collection includes HD cinematic story videos from Kingdom Hearts 358/2 Days.
Source: Press release