In an unexpected turn of events, it's been revealed that Bruce Wayne does indeed exist in the Arrowverse! There have been hints that Batman and Superman will one day become part of this world for a while now (they were both name-dropped early on in Legends of Tomorrow) but this makes it official and you can watch the clip featuring Oliver Queen talking about Gotham City's hero below.
There's a very good chance we'll never see Batman appear in the Arrowverse but this opens the door to that happening and could mean we'll one day see Green Arrow and the Flash visit Gotham!
Either way, this mention is significant and could be a game changer. As time goes on and Warner Bros. draws clearer lines behind its DC Comics adaptations, we could see Batman on the small screen in Arrow just like Superman has made some brief appearances in Supergirl! What do you guys think?