Well, In Japan anyway.
At the 2008 SquareEnix DKΣ3713 Party, it was announced that Final Fantasy VII Advent Children Complete will be released on March of 2009 in Japan and will be bundled with a demo version of Final Fantasy XIII along with the first HD released trailers of Final Fantasy Versus XIII and Final Fantasy Agito XIII, making them the first released trailers of the Fabula Nova Crystallis series.