Following its press conference, Square Enix detailed the development teams working on the three games making up its Fabula Nova Crystallis project. Most interestingly, Final Fantasy XIII's soundtrack is being composed by Masashi Hamauzu whose recent works include the soundtracks for Final Fantasy X (together with Nobuo Uematsu and Junya Nakano) and Dirge of Cerberus: Final Fantasy VII. Nobuo Uematsu will only compose the game's main theme. Meanwhile, Yoko Shimomura (Parasite Eve, Seiken Densetsu: Legend of Mana, Kingdom Hearts series) will get her first chance to work on a Final Fantasy game as she scores Final Fantasy Versus XIII. Below you will find the complete lists, as provided by Square Enix:

Final Fantasy XIII, PlayStation 3

Producer: Yoshinori Kitase (Final Fantasy VIII, X, X-2, Final Fantasy VII: Dirge of Cerberus)
Director: Matomu Toriyama (Final Fantasy VII, X, X-2)
Character designer: Tetsuya Nomura (Final Fantasy V - XII, X, Final Fantasy VII: Advent Children, Kingdom Hearts)
Art director: Isamu Kamikokuryou (Final Fantasy X, VIII)
Main programmer: Kazumi Kobayashi (Chrono Trigger, Xenogears, Chrono Cross, Final Fantasy XI)
Movie director: Eiji Fujii (Final Fantasy: The Spirits Within, Final Fantasy XII)
Main theme composer: Nobuo Uematsu (Final Fantasy series)
Composer: Masashi Hamauzu (Final Fantasy X, Dirge of Cerberus: Final Fantasy VII)

Final Fantasy Versus XIII, PlayStation 3

Producer: Shinji Hashimoto (Kingdom Hearts series, Final Fantasy VII Advent Children)
Director and character designer: Tetsuya Nomura (Final Fantasy V - VIII, Final Fantasy VII: Advent Children, Kingdom Hearts)
Movie director: Takeshi Nozue (Final Fantasy IV, X, Final Fantasy VII: Advent Children, Kingdom Hearts)
Composer: Youko Shimomura (Parasite Eve, Seiken Densetsu: Legend of Mana, Kingdom Hearts)

Final Fantasy Agito XIII, cellphones

Producer: Yukimasa Itou (Before Crisis: Final Fantasy VII)
Director: Hajime Tahata (Before Crisis: Final Fantasy VII, Crisis Core: Final Fantasy VII)
Character designer: Tetsuya Nomura (Final Fantasy V - VIII, Final Fantasy VII: Advent Children, Kingdom Hearts)
Art director: Yuusuke Naora (Final Fantasy VII, VIII, X)
Composer: Takeharu Ishimoto (Before Crisis: Final Fantasy VII)