Originally Posted by
John Venus
Kingdom Come
Ah, the original sin.
I would explore how Diana failed her mission, how she became an exile and how the Amazons felt about her being gone. No doubt Hippolyta would be depressed and some Amazons wouldn't be content with it. I would explore what happened to Steve, Etta, Donna and Cassie in this universe as well as her rogues.
Then I would deal with the KC epilogue. I actually love KC's extended epilogue that Alex Ross. That was some beautiful storytelling. I wouldn't retcon it but I would add to it instead. I would have Diana divorce Clark after a few centuries, go on a journey of self discovery and then develop her own hyper advanced civilization called 'Planet Themyscira' that lasts into the Legion's time.
Injustice
Diana was mind controlled or at some point outright replaced by Circe who is trying to drum up more chaos in the world by encouraging Super Hitler.