The event was a huge success, so much so that The CW decided to repeat the crossover event this TV season.
Next season, Arrow, The Flash, Legends of Tomorrow, and now Supergirl will join forces in our annual crossover event, our biggest ever.
A couple of years ago when Fox added The Flash to its TV lineup, the network realized it had a unique opportunity to do a two-episode crossover connecting the worlds of The Flash and the networks other DC Comics drama Arrow.
With The Flash returning for Season 3, Arrow returning for Season 5, and Supergirl and Legends of Tomorrow returning for Season 2, the fall TV schedule is going to be chock full of DC heroes.