Board Thread:The Flash discussions/@comment-24152851-20190130031943/@comment-27700324-20190130174534

Yes, i know because i read Kate's books. She is unrelated to him for the most part aside from them being cousins and that they both dress like mammals. However the Arrowverse didn't pick a Batman show so i think they'll change it to being Kate's story instead of Bruce's. Because Kate is the one with the history in this world.