Beall previously worked on another draft of the script, but ended up leaving to go work on the pilot for the Training Day TV series at CBS. Johns is now overseeing all of the DC Extended Universe films with Jon Berg. He won't just write something based off of a few ideas, his comic books, and the plot he was told to base things on.
Jason Momoa's scenery-chewing King of the Seven may have only appeared briefly during that fantastic Justice League teaser - squaring off to the Caped Crusader in one scene and confronting mother nature in the next - but make no mistake, Arthur Curry is quickly becoming a fan-favorite whether he talks to fish or not.
The movie is due for release in July, 2018. At the time, WB chose Kurt Johnstad's script, which then got a rewrite from David Leslie Johnson once James Wan came onboard.
Wan also teased about what viewers should expect to see from the "Aquaman" movie. With the Aquaman story locked and Beall working his solo magic on a one-man screenplay, it seems this is a positive development for the mega-budgeted film project that can only lead to a more cohesive, compelling narrative. Unfortunately, none of those ideas were received very well, and it led to Wan and Johns wanting the story to be ideal, so all of those script ideas have been thrown out.
On board alongside Momoa are Amber Heard and Willem Dafoe as Aquaman's mate, Mera, and advisor, Vulko, respectively. Originally, there were several different writers developing multiple scripts. The film was expected to break numerous box office records, yet it failed to reach the billion-dollar mark worldwide. Beal's past writing credits include the 2013 film Gangster Squad, which starred Sean Penn and Ryan Gosling.