Update: And now it is being reported that a Batwoman series is in development at The CW in addition to the planned crossover featuring the character. Read on for our thoughts on how this could create problems for the Arrowverse.
From the very beginning, one of the biggest questions surrounding Arrow and its various spinoffs has been whether Batman exists in this version of the DC Universe. There’s been an increasing amount of evidence over the years, but confirmation finally arrived with the news that the next Arrowverse crossover will introduce both Gotham City and Batwoman. We still may not actually see Batman on these shows, but at this point there’s little doubt he exists in the Arrowverse.
Source: IGN.com Why Batwoman Creates New Problems for the Arrowverse