Unproduced sequel and reboot
A sequel, tentatively titled Spawn 2, has been in development hell since 1998. Producer Don Murphy maintained that he was part of the project in 2001. McFarlane stated that the film would have centered primarily on the detective characters Sam and Twitch, with Spawn only as a background character.
In 2007, McFarlane Funding announced development of a new feature film adaptation of the character, titled Spawn, scheduled for release in 2008. During an interview on the Scott Ferrall show on Sirius radio, McFarlane said: "It's coming out no matter what. Even if I have to produce, direct and finance it myself, it's going to come out."
On August 23, 2009, McFarlane announced that he had begun writing the screenplay for a new movie based on the character, saying that "The story has been in my head for 7 or 8 years", that "The movie idea is neither a recap or continuation. It is a standalone story that will be R-rated. Creepy and scary", and that "the tone of this Spawn movie will be for a more older audience. Like the film The Departed." In July 2011, Michael Jai White said that he was interested in returning to the role, expressing his support for McFarlane's film. In July 2013, Jamie Foxx said he was "aggressively pursuing" the Spawn reboot. In August 2013, McFarlane discussed his progress with the script, stating that the film would be "more of a horror movie and a thriller movie, not a superhero one".
In February 2016, McFarlane announced he had completed the film's script. In July 2017, Blumhouse Productions confirmed their involvement with the film, while announcing that McFarlane had also signed on to direct the project. The movie was expected to begin production by February 2018. In May 2018, it was announced that Jamie Foxx would portray the titular character. In July 2018, it was reported that Jeremy Renner would be starring alongside Foxx as Detective Twitch. On October 25, 2018, the filming start date was delayed to June 2019. The film ended up missing its start date. In November 2019, the film restarted development due to the financial success of the R-rated comic book film Joker. In December 2019, McFarlane hired an additional writer to help polish the script, before presenting it to a major Hollywood studio. In March 2020, McFarlane stated Spawn will go into production sometime in 2020 with the intention for him to direct and Jamie Foxx still attached for the lead role. In May 2020, producer Jason Blum stated that "There has been an enormous amount of activity on Spawn......But, suffice to say, it is a very active development." In August 2021, it was revealed that Broken City screenwriter Brian Tucker had been hired to rewrite McFarlane's screenplay. In October 2022, Scott Silver, Malcolm Spellman, and Matthew Mixon had been hired to rewrite the screenplay. In June 2023, it was reported that the film was in "very very active development" , with an estimated release date in 2025. In September 2023, McFarlane stated that the screenplay was almost finished before work was halted by the Writers Guild of America strike. In January 2024, McFarlane stated that the year was considered a "make or break" year for the film, revealing that he had assembled a group of investors to fund it independently if he was unable to have a major studio acquire the project. In July 2024, McFarlane revealed that the screenplay was finished, that they were now looking for a director, and that the film's title would be King Spawn. In July 2025, McFarlane stated that they were close to signing an "A-list" director and that they were waiting to share any news until the script was complete and a studio had acquired the project.