^ As you say, given the success of the movie, one would have expected this to carry on.
There seems to be no real correlation between successful comic book movies and tv cartoon versions of the same characters. The Iron Man Armoured adventures doesn't seem to have lasted very long. There have been at least 2 attempts to make a Spider-man cartoon since the Raimi movies, but neither lasted long. And The Batman was cancelled, despite the success of the Nolanverse.