The screenplay will be co-written by three people: Jenkins, Johns, and The Expendables writer Dave Callaham. Callaham’s involvement was revealed on Sept. 13, disappointing fans who hoped for another woman on the film’s core creative team. That being said, it seems that Callaham was personally recruited by Jenkins herself since they already worked together on a previous project.
After Darkseid and Grail's retreat, they returned to a base in the Amazon Rainforest, where Darkseid was setting his mysterious plans into motion. He tasked his loyal Female Furies with tracking down a godly relic he needed, but they were unable to do so thanks to the intervention of Steve Trevor and his A.R.G.U.S. forces. Meanwhile, Wonder Woman fought a number of villains that had been recruited by Veronica Cale: Zara of the Crimson Flame, Blue Snowman and Anglette. As Diana caught up with Steve at A.R.G.U.S. HQ, Jason returned wearing a suit of armor gifted to him by the gods, but with no knowledge of its purpose. As news came in of an attack by Grail, Wonder Woman and Jason immediately responded just in time to prevent Grail from killing another demigod. Wonder Woman bound Grail in the Lasso of Truth and forced her to reveal Darkseid's plans. Grail explained that Darkseid was looking to build himself an army of Amazons. Due to her half-Amazon blood, Grail was able to break free from the Lasso's grip and retreated.
In 1972, just months after the groundbreaking US Supreme Court decision Roe v. Wade, science fiction author Samuel R. Delany had planned a story for Ms. that culminated in a plainsclothes Wonder Woman protecting an abortion clinic. However, Steinem disapproved of Wonder Woman being out of costume, and the controversial story line never happened.
Chris Pine was cast as Steve Trevor, a character he described as a "rogue-ish, cynical realist who's seen the awful brutish nature of modern civilization" and added that he is a "worldly guy, a charming guy". He signed a multi-picture deal. Lucy Davis' performance as Etta Candy is the first live-action cinematic portrayal of the character. As well, Elena Anaya's performance as Doctor Poison is the cinematic debut of that character. Nicole Kidman was in negotiations for the role of Queen Hippolyta, but was forced to drop out due to scheduling conflicts with Big Little Lies.