Per Comic Book Resources, Mari "Vixen" McCabe is getting her own animated series set in the Arrow and Flash-verse. It looks like the series will be produced for the CW Seed Initiative, which is the CW's digital only division, so it will probably not air on TV, but exclusively online.
Still, this sounds pretty awesome. Animation can get away with a lot more awesome things and doesn't have to rely on budgetary concerns. And Vixen is an awesome character.