I'd like to throw my opinion in here: I'm loving what I'm seeing so far from the set, Batwoman looks damn good. My concern will be the actress and the acting she can deliver, until I see the episode that will be my only doubt/concern.
As for Ackles, he was amazing in Under the Red Hood, and my hope is that CW will introduce that character at some point as well and he'll be playing him but who knows. Ackles is too underrated imo, I think it's largely due to the fact he's been with the CW for practically his entire career. The guy can act though.
Overall, I haven't watched any of the CW superhero shows for a few years now. Arrow got too soap opera-y with Felicity...? and Oliver. And then I felt Flash got repetitive and bland as well (after season 2) Do you guys think I should jump in and catch up before this cross-over? Is there a season(s) for both shows I should avoid? What are your thoughts on that?