Board Thread:Arrow discussions/@comment-9346948-20180126043149/@comment-27700324-20180126065230

RenQuick34 wrote: Ya I Don't think that is happening in a very long time........First of all they are of different universe and he had just one episode of crossover with the flash which till now is the only series with the portals opening other than the crossover episode in this year.......So that's a very long shot that is not happening anytime soon.. When did Black Lightning crossover with the Flash?