Quote Originally Posted by Ra-El View Post
They could rotate the character on the League, like JLU did. When they wanted to prop a character they would just have to do more stories with him on the JL.
Problem is that Justice league has at this point mainly become a constant event book that revolves around the big six.
Using that to prop up a new character without that it feeling completely undeserved (or doing any kind of character development) is really hard.