Batwoman is joining the Arrowverse

Entertainment Weekly

Arrow star Stephen Amell revealed the big news at The CW's upfront presentation. “We’re incredibly excited to announce that we’ll be doing another crossover event this fall on the CW, and we’ll be introducing a new character,” Amell said. “For the very first time appearing, we’ll be fighting alongside Batwoman, which is terrific. The crossover is going to make it to air in December. I need to leave right now and start filming it.” This will mark Batwoman's first appearance "on any screen," CW president Mark Pedowitz said.