The next big Arrowverse crossover is coming to The CW this December, and it will feature the first appearance of Ruby Rose’s Batwoman.
The CW has announced the crossover event will involve The Flash, Arrow, and Supergirl, with a special episode of Arrow on Monday, December 10 at 8pm ET/PT.
Crossover episodes of The Flash and Supergirl will swap time slots this year, with the Flash episode airing Sunday, December 9 at 8pm ET/PT, and Supergirl following on Tuesday, December 11 at 8pm ET/PT.
A special three-night Arrowverse crossover event is coming to The CW this December.
Source: IGN.com Arrowverse's Next Crossover, Featuring Batwoman Introduction, Happens This December