New Cosmere novel in 2026

Brandon Sanderson has a new Cosmere novel lined up for 2026: *The Fires of December*, a standalone tied to Hoid and slated for a December release. (brandonsanderson.com) Sanderson said in his December 19, 2025 “State of the Sanderson” post that 2026’s main book release is *The Fires of December*. He also said a crowdfunding campaign tied to the book and the Hoid Storybooks is set for March 2026. (brandonsanderson.com) The book was first announced at Dragonsteel Nexus in December 2025, where Sanderson and Emily Sanderson said the project was his sixth “secret project.” KSL reported then that Tor would publish the novel commercially in 2026 after the premium edition campaign. (ksl.com) The Cosmere is Sanderson’s shared fantasy universe, which links series including *Mistborn*, *The Stormlight Archive*, and standalones set on different worlds. His official bibliography and fan reference sites track those books as one connected setting rather than separate franchises. (coppermind.net) That makes a new standalone notable in a year when Sanderson is also working on larger long-range projects. On his official site this week, Sanderson’s progress tracker listed “Ghostbloods Book 1” at 100% and a “Mistborn Screenplay” at 55%, alongside the *Fires of December* promotion on the homepage. (brandonsanderson.com) Sanderson’s 2025 year-end roadmap also pushed some bigger Cosmere milestones further out. Coppermind’s archive of that post says *Mistborn* Era Three is projected to begin in 2028, with *Stormlight* book six projected for 2031. (wob.coppermind.net) A 2026 standalone gives readers a new entry point while those larger arcs stay years away. KSL reported that *The Fires of December* centers on Hoid, one of the recurring figures who threads through multiple Cosmere books. (ksl.com) Art Threat’s report this week framed the book as part of Sanderson’s crowded schedule and broader universe-building push. The underlying release plan, though, comes from Sanderson’s own December 2025 update: one new Cosmere novel, arriving in 2026. (artthreat.net)