Obviously, the most logical thing for CW to do with Batwoman is cast a new actor in the role and keep going with Kate Kane’s story. Not only is there no time to introduce a successor, but there is an active storyline that really only works if the protagonist is Alice’s sister and Bruce Wayne’s cousin. So it goes without saying that S2 Batwoman will still be Kate Kane. But thinking about how the network would handle this situation if it was happening after several seasons, like when Stephen Amell was convinced to come back for one more shortened season to wrap up the story on Arrow, I’m convinced that Violet Paige (aka Mother Panic) would make a pretty awesome Batwoman.
Like Kate, she’s a rebellious member of Gotham City’s wealthy families. But her backstory is totally different, as is her motivation for crimefighting. Violet comes back to Gotham with a mission not unlike Oliver Queen’s, and has no interest in joining the Bat family. I think she’d make a great foil for Kate, and if she was introduced late in the game like Mia Smoak was, she’d be a great choice to take up the Batwoman mantle if Kate decided to leave Gotham.
Since Mother Panic started, I’ve always thought she’d make an interesting addition to the Arrowverse. But under slightly different circumstances, I could see her eventually becoming Batwoman.