What is the new upcoming Final Fantasy game on PSP?

Question

What is the new upcoming Final Fantasy game on PSP with all the Characters like Vaan, Tidus, Cloud etc.

Answer 1

It is "Final Fantasy: Dissidia" which is to be released in Japan in December of 2008, and in the USA, Decemeber of 2009. No other release dates have been given,

Answer 2

Dissidia: Final Fantasy

Answer 3

Like the other answers say, the name of the game is Dissidia: Final Fantasy, but only they've only said when the Japanese release date is (December 2008), not the US one. Also, they haven't mentioned anything about Final Fantasy XII characters or Cloud being in the game yet. (Although, since Sephiroth is in it, there's a good chance Cloud will be too, but they could always put in Zack instead.)