Rumor: Final Fantasy VI Villain to appear in Final Fantasy XIII-2 DLC
Final Fantasy XIII-2 includes a feature in-game called the Coliseum. Two other bosses coming to the Coliseum included the leaked Jihl Nabaat from Final Fantasy XIII and Gilgamesh (final form) from Final Fantasy V.
Now a boss from Final Fantasy VI has been rumored to head to XIII-2's Coliseum. Fan favorite, Kefka could be a certain possibility. Guess we won't know until it's officially announced or denied.