Every Upcoming Game of Thrones Movie and TV Show Spin-Off in Development

The first Game of Thrones prequel series to focus on a humble hedge knight rather than a dragon-riding dynasty is already heading into its second chapter. Production on A Knight of the Seven Kingdoms season 2 has concluded, with actor Dexter Sol Ansell — who plays the young Egg — confirming via Instagram that filming is complete. The project is set to reach audiences in 2027, with cameras having rolled as early as December 2025, before the first season had even premiered.

Where season one anchored its story at Ashford Meadow, the follow-up will move the action to Dorne, as hedge knight Dunk and his squire Egg continue their wandering adventures through a Westeros of a century past. Each season of the anthology-style series adapts one of George R.R. Martin’s Dunk and Egg novellas, meaning season 2 draws from The Sworn Sword. Because the novellas are self-contained stories, viewers can expect an almost entirely new cast of supporting figures — although showrunner Ira Parker has left the door open for the return of familiar faces from season one.

The Game of Thrones universe is making its cinematic debut, and it has a firm date on the calendar. Game of Thrones: Aegon’s Conquest is scheduled to arrive on June 1, 2029, making it the first feature film to emerge from Martin’s sprawling saga. The screenplay has been entrusted to Bea Willimon, known for her writing work on Andor, while direction falls to Owen Harris, the same filmmaker who helmed A Knight of the Seven Kingdoms.

Though specific plot details remain under wraps, the source material points clearly to the story’s scope. Aegon’s Conquest sits at the very origin of the Targaryen dynasty — the moment when Aegon, accompanied by his sister-wives and his dragons, foresaw the coming of the Long Night and chose to unify the fractured kingdoms of Westeros under a single banner. The events of this film would predate almost every other corner of the franchise, predating House of the Dragon and the original Game of Thrones series alike.

The project once known simply as Snow — a sequel series that would have followed Kit Harington’s Jon Snow north of the Wall — was shelved after HBO reportedly found the original creative direction too grim to pursue. According to The Hollywood Reporter, the initial version of the show would have depicted Jon living a broken existence beyond the Wall, suffering from PTSD, bereft of both his direwolf Ghost and his sword Longclaw. Harington himself is said to have wanted his character to die on screen.

That version was set aside, but the project has not been completely abandoned. Writer Quoc Dang Tran, known for Drops of God, has reportedly come on board to develop a fresh take on the material. There is now a possibility that the story could unfold in Essos rather than north of the Wall, and the prospect of Arya Stark’s return — which would bring Maisie Williams back to the franchise — has been floated as part of the new direction. Nothing has been officially confirmed, and whether Harington or Williams ultimately appear remains entirely uncertain.

The show centred on Corlys Velaryon, the legendary mariner known as the Sea Snake, began its life as a live-action production — but that changed. Steve Toussaint introduced Corlys to modern audiences in House of the Dragon season 1, but George R.R. Martin confirmed in a 2023 post on his Not a Blog page that the series, sometimes called Nine Voyages, has transitioned to animation. Martin explained the practical reasoning directly.

Updates on the project have been sparse since that announcement, though the actor who portrayed Corlys on screen has said publicly that he remains hopeful the animated version will eventually be made. It sits alongside at least two other animated Westeros productions that Martin referenced, though details on those companion projects have not been fully disclosed.

Ten Thousand Ships brings to life the historical figure behind one of Game of Thrones’ more memorable character details: the direwolf that Arya Stark named after the warrior queen Nymeria. In the lore, Nymeria led her people across the sea after their homeland of Rhoyne was conquered, eventually settling in Dorne and becoming its ruling princess through marriage to Lord Mors Martell — the same House Martell referenced throughout the parent series. Writer Brian Helgeland developed an early version of the show, but it was not picked up by HBO.

In 2024, Martin revealed that a new pilot script was being written by playwright Eboni Booth, describing her with considerable enthusiasm on his blog. “She’s an amazingly talented young playwright, and a joy to work with; when not writing and producing her prize-winning plays on- and off-Broadway, she has been kept busy by me and HBO, working on a new pilot for TEN THOUSAND SHIPS, a GAME OF THRONES spinoff about Nymeria and the Rhoynar. We’re all very excited about this one… though we’re still trying to figure out how we’re going to pay for ten thousand ships, three hundred dragons, and those giant turtles,” Martin wrote.

Of all the projects on this list, The Golden Empire is perhaps the one viewers know the least about in terms of concrete detail. The show is set in Yi Ti, a region that lies to the east of Qarth and has never appeared on screen in any live-action Game of Thrones production. Martin acknowledged the project in a 2022 Not a Blog entry while being deliberately circumspect about most of what was happening on the animated side of development.

No further information on casting, story, or timeline has been released since those comments, but Martin’s evident excitement about the visual direction suggests the production has at least progressed meaningfully in its early stages.

Not every project born from the Game of Thrones universe has survived the development process. Several spin-offs were announced, developed to varying degrees, and then quietly discontinued. Keeping track of what has been definitively shelved helps clarify how the active slate compares to what might have been.