Batwoman will debut in the CW's Arrowverse this fall as part of a multi-show crossover event.
“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. For the very first time appearing, we’ll be fighting alongside Batwoman, which is terrific," said Arrow star Stephen Amell (via Entertainment Weekly). "The crossover is going to make it to air in December. I need to leave right now and start filming it.”
CW president Mark Pedowitz added to that, saying that "the city of Gotham" will also be integrated into the Arrowverse.
"This will be another full-throttled action packed event,” said Pedowitz.