Per Kevin smith on Fatman Beyond, he heard from the son of Michael Uslan, Executive Producer on the Batman movies since Batman 1989, that if Flash does well WB will move forward w/ Batman Beyond staring Michael Keaton, & Flash is underperforming at the Box office RN.
My Reaction: pic.twitter.com/CxFSz15UdC

— Daily Batman Anthology (@BatmanAnthology) June 20, 2023