First, people complain about there being a new cast. Then people complain about Aang being dead, now people are complaining that it's only 12 episodes. I swear, it's like some people are only happy if they have something to be unhappy about. Some of the posters here just won't be content about this unless it's made into an exact copy of the original Avatar. Just be thankful the creators decided to do anything further with the Avatar world at all and give them the benefit of the doubt. They haven't steered you wrong yet, have they?