Board Thread:News and Announcements/@comment-4556650-20140411113722/@comment-3544775-20140729153135

If there is no confirmation, then it still not confirmed. A-1 are the highest possible one, but Aniplex have worked with other studios too, like with Gintama, D.Grayman, Darker Than Black, Naruto, Full Metal Alchemist and many more. None of them is done by A-1.