It's about time Warner Brothers expanded their superhero franchises to include the second-stringers. They had moderate success with the Wonder Woman television show of the 70's but could never duplicate that. Lord knows, they tried with The Flash.
Truthfully I've always had a thing for Green Lantern. Of all the DC heroes, he's the one that anybody can be. All you have to do is wear a ring (available in fine collector's stores for $3). If they follow the formats of the Superman and Batman animated series of the 90's (as the intended title seems to indicate), they may have a winner on their hands.