These days, it's standard for video games to get downloadable content after they are released. Final Fantasy XIII is not your standard game.
Final Fantasy XIII has not gotten any downloadable content - to the chagrin of players. DLC gives a title a longer life and sometimes provides a more robust gaming experience. Downloadable content is something to look forward to.
On December 17, 2009, Final Fantasy XIII director Motomu Toriyama wrote this on the game's official website: "The world of Final Fantasy XIII is starting from here on out." He then added if players held on to their copies of the game, "good things" were possibility on the horizon.
It seemed as though Toriyama was hinting at future downloadable content for the game.
In a recent interview with a Japanese game magazine, Toriyama apparently said, "We had plans for DLC, but those plans disappeared. Apologies!"
Previously, Square Enix stated that there were enough discarded Final Fantasy XIII assets to make another game.
Kotaku is following up with Square Enix and will update if the companies comments on this issue.