Batwoman Wings her Way to the Arrowverse in the Next Big Crossover Event

Details are scarce, but filming has already begun.

The CW used Thursday morning’s upfronts to make a major announcement regarding their popular “Arrowverse” shared world of superheroes.

“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,” Arrow‘s Stephen 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.”

Adding to the excitement, one of the most important characters in DC comics is coming along for the ride: Gotham City.

“We are adding the city of Gotham into the Arrowverse,” said Mark Pedowitz, President of The CW.

This expansion into the Bat family and Gotham City will let the Arrowverse explore the world of the Bat family without ruffling feathers at WB, who had declared Batman himself off-limits for television. It’s not clear yet whether Batwoman will exist on “Earth 1” with the Flash and Arrow, or “Earth 2,” home of Supergirl.

The CW uses their annual crossover event to bring characters from it’s superhero franchises — Arrow, the Flash, Supergirl and Legends of Tomorrow — together to fight bad guys that no one of them could tackle on their own.

Batwoman is secretly Kate Kane, a wealthy socialite and ex-military commando. As a lesbian, Kate was forced out of the army under the “Don’t Ask, Don’t Tell” policy. An expert at hand-to-hand combat and independently wealthy, she takes up the mantle of Batwoman for her own reasons and doesn’t need Batman’s tutelage or Bruce Wayne’s money (She actually figured out Batman’s secret identity on her own.)

There was no announcement regarding future plans for the character, but if audience respond well, it is likely we will see Kate again, in her own series or as a guest star on others.