According to
IGN.com, Square Enix has confirmed the release window for
Final Fantasy XIII-2 in North America, but not yet in other regions. The game is set for release this January (2012) for the PS3 and Xbox 360. I've only recently gotten into the Final Fantasy series, and love FF XIII, so it's awesome news that I'll only have a wait six months or so for the next one.
Final Fantasy XIII-2 will be on display at Comic Con this week, so there is bound to be more news coming soon.