In March, in Japan not one but three edition of Final Fantasy: Advent Children Complete will be released, read below to see the differences between each version.
First Edition
Final Fantasy XIII demo, Final Fantasy Agito XIII trailer, and Final Fantasy Versus XIII trailer included on special edition disc.
Playstation 3 First Edition Bundle
PS3 console and special edition disc (with FFXIII demo, FF Agito XIII trailer, FF Versus XIII trailer) included.
Regular Edition
Does not include special edition disc
However...
Square Enix have told this morning V247 that a release of Final Fantasy: Advent Children Complete and its demo of Final Fantasy XIII outside of Japan wasn't a plan.
First Edition
Final Fantasy XIII demo, Final Fantasy Agito XIII trailer, and Final Fantasy Versus XIII trailer included on special edition disc.
Playstation 3 First Edition Bundle
PS3 console and special edition disc (with FFXIII demo, FF Agito XIII trailer, FF Versus XIII trailer) included.
Regular Edition
Does not include special edition disc
However...
Square Enix have told this morning V247 that a release of Final Fantasy: Advent Children Complete and its demo of Final Fantasy XIII outside of Japan wasn't a plan.