Reports Deadline, DC Nation will be "populated with event programming, interstitials, exclusive behind-the-scenes of theatrical production and an insider look into the world of all things DC." Warner Bros. Animation will produce the block.
Here is a breakdown of the Cartoon Network shows announced that are CBM appropriate:
The Looney Tunes Show: Screen icons Bugs Bunny and Daffy Duck are back, starring in an all-new modern comedy series from Warner Bros. Animation featuring all of the favorite Looney Tunes characters—Porky Pig, Speedy Gonzales, Yosemite Sam, Foghorn Leghorn, the Tasmanian Devil, Marvin the Martian, Tweety, Sylvester, Granny, Gossamer, Lola and Tina, Daffy’s new no-nonsense girlfriend. Fresh designs coupled with a vivid, contemporary animation style enhance the timeless wit and charm that make these classic characters so beloved around the world. The Looney Tunes Show will premiere on Tuesday, May 3, at 8 p.m. (ET/PT).
New Ben 10 Series [Title TBD]: Ben 10 has been one of Cartoon Network’s most successful original series since first premiering on the network in January 2006. The franchise has since spawned four animated series, one animated movie, two live-action movies, a widely-popular consumer products line and has captured the imaginations of viewers on a global scale.
ThunderCats: The re-imagined animated series based on the beloved 80s classic tells the tale of a hero’s epic journey to fulfill his ultimate destiny. On Third Earth, the kingdom of Thundera is being threatened by the evil sorcerer Mumm-Ra and young heir to the throne Lion-O embarks on a great quest to take his rightful place as king. The unlikely champion, joined by his faithful comrades Tygra, Cheetara, Panthro, WilyKit, WilyKat and his loyal pet Snarf, must work together to save their world from darkness.
Green Lantern: The Animated Series: Based upon the DC Comics super hero, the series is an all-new CG animated action series from Warner Bros. As Earth’s Green Lantern, Hal Jordan is used to being in dangerous situations—but he’s never faced anything like this! Set at the farthest reaches of deep space, Hal must face down an invasion from the Red Lantern Corps. Hal is soon joined by an all-new group of heroes on a mission to protect Guardian Space —and the Green Lantern Corps itself!

DC Nation: A multi-platform, branded block of original programming and exclusive content based on the DC Comics library of legendary character properties, DC Nation is developed in partnership with Cartoon Network, Warner Bros. and DC Entertainment. The all-new venture will harness the publishing, theatrical and television assets together for one powerful on-air block on Cartoon Network with exclusive online content.
Additionally, Clone Wars has been picked up for a fourth season.