Kingdom Hearts II is getting the same ReMix treatment as its predecessor. Square Enix announced that Kingdom Hearts 2.5 HD ReMix will hit the PS3 in 2014.
The collection definitely contains two games: Kingdom Hearts II Final Mix and PSP game Kingdom Hearts Birth by Sleep Final Mix. It may also contain mobile puzzle game Kingdom Hearts coded as well, though it is unclear if coded will be included as a full playable game or just as a series of cutscenes similar to how Kingdom Hearts 358/2 Days was handled in the first collection.