In case I’ve been living in a cave… I found out a few days ago that Kingdom Hearts II Final Mix was released in Japan. It’s a remake of the second game with a SLEW of new content. Also, they REDID Chain of Memories into a 3D game, also with a slew of new-ness.
Someone on gamefaq boards has a complimation of all the extras thrown in, check it out.
If you dont’ belive me, do some youtube searches. In fact, do a LOT of 'em. The new boss, the new secret ending, the new form = Holy Shit.