One of my friends online told me about this so i thought i would share it.
Batman: The Brave and the Bold
Announced in early 2008, an animated series based on the comic book series will be made as the next DC Animated cartoon.  As the title suggests, the series will feature Batman teaming-up with various characters of the DC Universe, much like the first volume of the ongoing series. Known characters to have been revealed so far are Green Arrow, Blue Beetle, and Aquaman. The series was set to start airing in Fall 2008, but was pushed back to March 2009 instead. 
UPDATE: The Batman-Season Five was released on DVD July 8, 2008. This season contains the Brave and the Bold storyline.