Lightning, star of Final Fantasy 13, can be made a party member in sequel Final Fantasy 13-2.
Japanese magazine Weekly Famitsu (via Andriasang) reveals Lightning will appear as a DLC coliseum character in the game. Defeat her, and you can add her to your party. The coliseum battle mode includes classic Final Fantasy series bosses - Sephiroth?
Elsewhere, Square Enix plans to release "secret story episodes" for Lightning. The Japanese company will also release Final Fantasy 13-2 novels with a view to expanding the story outside of DLC. Sazh, his son and the Chocolina character will be included in DLC or novels.
13-2 is out in Japan now. It launches in Europe on 3rd February.