User blog comment:Dtuck010/Theory why Nightwing, Miss Martian and Superboy didn't want to join the League/@comment-98.204.100.195-20120429043933

well one of the interviews that Greg and Brendon did to promote season 2 (it's one of the ones linked in a blog on this site) specifically said that while season 1 had the mentor-sidekick dynamic between the league and the team, that season 2 would offer more of the senior-freshman dynamic within the team. So, yeah, with that info, it does add evidence that nightwing, miss martian, and superboy will hang out on the team longer. And, given their status as 'seniors' are probably -enjoying- the trust and authority (rather than always being assigned tasks from the mentors)... after all, when they go to the justice league then they will be the freshmen all over again. And, you got to enjoy being the senior when you can.... right? :)

Of course, i don't doubt that they'll learn about the responsibility that comes with being a senior and so on as the develop as characters.