I'm looking forward to this, it looks like its going to be pretty awesome. IDK about it being more mature but like Ed said Bryke said that it just has different mature issues from the origional show. I doubt it will be anything like the movie; Shyamalan messed up the show pretty bad and didn't stick to a lot of things that people loved from Avatar. Plus there was bad acting and dialogue. Bryke probably won't do any of that.