After The 3rd Birthday and Kingdom Hearts: Birth by Sleep Final Mix, Nomura’s next game is Dissidia Duodecim: Final Fantasy. Square Enix plans to publish the PSP game in spring 2011.
Dissidia Duodecim: Final Fantasy content will actually ship before the game. The 3rd Birthday comes with a code that gives Lightning an Aya costume, fitting since Aya has a Lightning outfit in her game.
Kingdom Hearts: Birth by Sleep Final Mix includes a code for a Kingdom Hearts Cloud costume. You’ll need to connect to PlayStation Network to download both costumes. It’s unclear if Square Enix plans on selling these as DLC or if they’re just a bonus for fans that pick up their other PSP games.