News of a "Fast and Furious" spinoff focusing on Charlize Theron's Cipher was included in a Variety report first announcing a sequel to "The Old Guard," which stars Theron and was released directly to Netflix. The "Old Guard" sequel is currently scheduled to start filming during the beginning of 2022.
The upcoming Cipher film, meanwhile, is still in the scriptwriting phase. This news comes courtesy of "Fast" star and recording artist Vin Diesel, who cited a team of writers working on the "Fast" franchise spin-off, but hasn't yet detailed any personnel involved beyond Theron herself.
Back in 2019, Diesel announced that a women-led "Fast" spin-of was in the works featuring a screenplay by Nicole Perlman, Lindsey Beer, and Geneva Robertson-Dworet. Whether or not this has now become the Cipher spin-off, or if these two projects are entirely separate, is currently unclear.
Since Theron will be busy filming the sequel to "The Old Guard" during the start of 2021, it's unlikely that the Cipher film will be released until 2023 at the very earliest, two years after "F9." This would match the two years that elapsed between "The Fate of the Furious" and "Hobbs & Shaw." In any case, more details about the film will likely surface the further along its production progresses.