Board Thread:General Discussion/@comment-26373999-20170408094855/@comment-11469381-20180114060837

Xandermcc wrote: Well Titans is its own canon and Black Lightning is only temporarily not in the Arrowverse.

Damien or any of the Arrowverse characters that aren't in the crossovers aren't going to be on Supergirl. you never know. it could happen. black lighting will join the rest of the arrowverse like supergirl did, that's just a matter of time. also don't forget dopplegangers, who's to say that they don't have copies of themselves on earth 38. anything can happen. I know it's very unlikely but I'm just saying keep an open mind.