This year's ArrowVerse crossover event takes place on just two nights. Monday Nov. 27 kicks it off with episodes from Supergirl and Arrow and then it all concludes the next day on The Flash and Legends of Tomorrow. Mixed in with all the crossover action, supposedly will be Barry and Iris' wedding. I'm curious if they will actually end up married. Interestingly, Ollie is back in his Green Arrow outfit in the teaser, so I'm hoping that means we don't have too much longer with Diggle as Arrow.