User blog comment:Dman6233/OT Live Action Teen Titans Series to air on DC Digital Service and be produced by Arrowverse writer, Greg Berlanti in 2018/@comment-4300738-20170427021457/@comment-4300738-20170427025756

FOX owns the TV rights to Batman from what I've heard. Which is why they've rarely mentioned Gotham, but never mentioned Batman by name even in Supergirl.