So the Green Lantern Animated Series 6 Minute Preview is old news by now & the series has already aired on cartoon network. The series is interesting if the CGI style seems to leave a lot to be desired with some folks. The hour long first episode pumps fun back into Green Lantern. Personally I've got a theory about the CGI animation. I think it was done to make the characters that much more toyrific. It makes things,characters,aliens,etc that much more easily converted into toys.
Some of the released concept art might make my point. Personally I think that the artwork might take a little used to get used to but this shows promise.
The official series website