I'm not sure if this is the right thread for this, but there's been something that I've been thinking about for a while-
I think we're no longer in an age where Batman: TAS is a major influence. Action cartoons aren't really being made anymore, and when they are, they feel closer to Marvel's recent stuff, Teen Titans Go! or even 80's cartoons rather than something like the DCAU or Avatar. It already feels like Korra was from a different period, and a lot of the shows that were hot when it premiered are still on!
We're still feeling the importance of The Simpsons, especially as adult animation is appreciating character again, while the reliance on creators and showrunners for the Nicktoons is still going strong. But we're already pretty far removed from what Batman, Gargoyles, Avatar etc were doing.