We wont have to wait til 2007!!!!!!
It has now been confirmed that the release date of Final Fantasy VII: Advent Children is the 14th of September 2005 in Japan. It had previously been supposed that the United States release would coincide with this, though Square-Enix are now denying they have stipulated a release date. Therefore, the United States and European / UK release date is still unconfirmed, though it is suspected to be released in late 2005 or early 2006 (but not 2007, don’t worry!).
From:http://www.ffnet.org/adventchildren/