DC has released a promotional poster for this years Arrowverse crossover event.
The event will introduce Batwoman to the Arrowverse, being played by Ruby Rose (Orange is the New Black, XXX Return of Xander Cage). Tyler Hoechlin will also return as Clark Kent/ Superman.
The crossover event is scheduled to begin December 9 with The Flash, followed by Arrow on December 10 and concludes with Supergirl on December 11. Legends of Tomorrow will not be involved.