This afternoon, DC Comics issued a cryptic press release teasing the launch of four DC/Looney Tunes crossover comics.

Stay tuned.
Jonah Hex. Yosemite Sam.
Martian Manhunter. Marvin the Martian.
Lobo. The Road Runner.
Batman. Elmer Fudd. 

Whether these books end up being oneshots or miniseries like Batman/Teenage Mutant Ninja Turtles remains to be seen. These books do seem to follow in the footsteps of the aforementioned one, though. Gotta love corporate synergy!