They cast a different Stephanie Brown actress, for what that's worth. Though, I suppose a substantial time jump could constitute a recast perhaps...
I know they won't, but I think it could totally fit in the Gotham canon, if not just for the sake of having the Gotham actors return. Danny Cannon is directing and producing an episode too. Won't happen though, lol.
I expect that Bruce Wayne will "die" in an explosion of sorts, no body. Really, I think the show should revolve around Dick Grayson. Maybe the children of Batman's enemies are actually Damian Wayne and Rose Wilson? It's NOT connected to Gotham, but I could see Edward from that show having a kid, he was a romantic after all, and Oswald maybe adopting his own child. He was very kind to that mute kid in the show.
I hope they don't just start giving random villains children and they do something clever. It has potential, I think.