well, there's always spoilers within
http://www.pspfanboy.com/2008/03/02/rumor-dissidia-poster-reveals-ff-villains/#comments
here's the list
Garland (I), Emperor Palamecia (II), Cloud of Darkness (III), Golbez (IV), Exdeath (V), Kefka (VI), Sephiroth (VII), Ultimecia (VIII), Kuja (IX), and Jecht (X).
Some of the pictures aren't new, but I just added them in since most people don't know much about the game.
Video is from SquareEnix Party 07: it shows actual gameplay
Second video is all the concept arts and characters pictures.
Soriku (Feb 10/08): In 5 years the PS3/360 will be dead.
KH3 bet: "If KH3 comes to Wii exclusive, I will take a 1 month of sig/avatar by otheres open a thread apologize and praise you guys' brilliance." http://vgchartz.com/forum/thread.php?start=50&id=18379
Original cast: Badonkadonkhr, sc94597 allaboutthegames885, kingofwale, Soriku, ctk495, skeezer, RDBRaptor, Mirson,