User blog comment:Vitalius/Characters or events that we like to see on season 2 ?/@comment-1635895-20120529092819/@comment-1038387-20120529182006

Downside is it's been done in S/B: Apocalypse. If you have a limited canvas to showcase your world, it wouldn't make sense to pick something that has been done already. That's (one of the reasons) why they didn't use Starfire, Raven, Cyborg and Beast Boy in S1.