Final Fantasy XIII-2 is in development for the Xbox 360 and PS3.
From Square Enix
Production on FINAL FANTASY XIII-2 is underway, and builds upon the best aspects of FINAL FANTASY XIII. In particular, a brand new story and evolved battle system promise to stand out markedly against the standard for high-quality content established by the previous title.
Since the release of FINAL FANTASY in 1987, this unique RPG series continues to showcase the spectacular visuals, highly imaginative worlds and rich stories leading the industry and earning the highest accolades from users around the world. The series have so far achieved a cumulative shipment of over 97 million units worldwide (as of September 2010).