AICN confirms that Warner Bros. Animation and DC Comics will follow this summer's Green Lantern: First Flight with Superman/Batman: Public Enemies, based on the 2003-2004 comic-book storyline by Jeph Loeb and Ed McGuinness.
Superman/Batman will be the sixth in the series of direct-to-DVD DC Universe Original Animated Movies that began in 2007 with Superman: Doomsday. Bruce Timm reportedly is executive producer.
The official synopsis appears to follow the source material -- the initial arc of the Superman/Batman comic series -- pretty closely, with President Lex Luthor claiming that a kryptonite asteroid heading toward Earth is part of a sinister plot by Superman. Luthor then offers a $1 billion bounty for the Man of Steel and his "partner in crime" Batman.
Superman/Batman: Public Enemies is expected to be released this fall.