It was scheduled as monthly, you know. With a planned gap month, to be filled in by a oneshot Dark Knight Return prequel.

Dark Knight III: The Master Race #6 is now scheduled for October 19th, with Miller and Janson reuniting for the included mini-comic.

But DC Comics has cancelled all orders for Dark Knight III: The Master Race #7 by Brian Azzarello and Adam Kubert, which was planned for October, but is now scheduled for December (honestly, this time) and will (again) appear in next month's Previews solicitations.

How about The Dark Knight Returns Eventually as a new title?