Even though it has made its money, it seems the terrible critical and fan response to Batman v Superman has caused quite a few shake ups to future DC films. It started with reshoots to Suicide Squad following reports that the trailer for the film included the only humor in the final cut and Ben Affleck being added as Executive Producer of Justice League, it looks like the biggest, and frankly most important change, comes with the new announcement of DC Creative Director Geoff Johns being added to as an Executive Producer for all future DC films.
Beginning with the return of Hal Jordan in 2005, Johns has been the driving force behind rebooting some of the most iconic heroes in the DC universe. He has been instrumental in rebooting Booster Gold, he retold the origin story of Superman, and brought Barry Allen back to life both on the page and on television. Even before the shake up that brought Ben Affleck to completely head up the solo Batman film it was announced that Johns would co-write the film with Affleck.
Personally I think this is a great decision as Johns has deep roots in the source material and a real connection to these characters. Johns has been involved in all of the recent CW shows and Supergirl and even with their trials, all of these shows have shown a deep appreciation for the characters. Johns will join the current Warner Brothers VP Jon Berg as executive producer handling a new WB division centered on developing and producing DC centered films.