I really think Star Ocean 4 won't be ported. It uses a upgrading version of the Infinite Undiscovery engine and Infinite Undiscovery is a Microsoft IP belive it or not.
http://www.microsoft.com/library/toolbar/3.0/trademarks/en-us.mspx
As far as I know the engine is built for the Xbox 360 so porting the game over to the Playstation 3 wouldn't be a simple copy & paste. I really don't see the point, there is no place for extra characters (The ship is capped at 8 characters and each one plays vital roles in the story) and I'm sure the game would be plagued by frame drops from a bad port.
It won't sell much then its Xbox 360 counter part anyway.








