I just realized something about the Ezra Miller Flash cameo and how it ties the DCEU into the Arrowverse. More specifically, how that cameo and the ending of Crisis on Infinite Earths has provided potential salvation to the DCEU. Since the premiere of Batman v Superman: Dawn of Justice back in 2015 (and arguably the premiere of Man of Steel back in 2013) the DCEU has faced an immense amount of scrutiny and criticism for numerous botched storylines and movie ideas. From messing up Lex Luthor, to doing whatever they were trying to do to the Joker. However, with Crisis on Infinite Earths briefly tying the DCEU In with the multiverse, only to prominently reboot said multiverse at the end, they made a possible way to not only do away with their own flaws, but the DCEU’s flaws as well. That is, if they choose to take this opportunity that has been so graciously gift-wrapped for them.