Board Thread:The Flash discussions/@comment-24152851-20190130031943/@comment-3221148-20190130171047

Batwoman is the one Bat Family character that really doesn't need much relation to Batman other than "he existed". All they have to do is have a sillhouette/fullsuit Batman like in Titans/Gotham representing Bruce Wayne, and the rest of it can be based on Dark Bruce taking over Barry's body like in the comics.

Marc Guggenheim has already established Our Barry as a Batman fanboy, so him having to face a dark version of one of his own ideal heroes possessing his own body and powers could be a cool arc (if somewhat lacking of a message or a moral).