2026 is looking like a huge year for the world of Game of Thrones. The new series A Knight of the Seven Kingdoms is off to a great start, and season three of House of the Dragon will be released very soon. Both shows are among the best fantasy series of the last few years, and early reviews for the new season of House of the Dragon suggest a bright future for the franchise. Plus, there are even more Game of Thrones projects in the works, including a movie about Aegon’s Conquest and an animated series focusing on Corlys Velaryon.
For every planned Game of Thrones spin-off that’s currently in development, there’s been another one scrapped. HBO has explored numerous ideas for expanding the fantasy world, but not all of them will make it to screen. Some cancellations are more frustrating than others, so we’ve ranked all the abandoned projects from most to least deserving of a second look by HBO.
6) The Original Aegon the Conqueror Show (in Which He’s…a “Drunken Lout”?)
During their presentation at CinemaCon, HBO announced that Warner Bros. is creating a movie about Aegon’s Conquest – the events of how Aegon Targaryen took control of Westeros. The film will be set 300 years before the original Game of Thrones series and show the beginning of the Targaryen family’s nearly 300-year reign. This is great news for fans, but it likely means a previously planned Game of Thrones spin-off TV show focusing on Aegon the Conqueror will no longer happen. That TV show, which was being written by Mattson Tomlin of The Batman, seems to have been cancelled in favor of the movie. This isn’t the first time a TV adaptation of Aegon’s Conquest has been dropped; an earlier attempt was also abandoned.
According to a 2022 report in The Hollywood Reporter, HBO explored several spin-off ideas after Game of Thrones ended, initially developing five different concepts. One idea, from Rand Ravich and Far Shariat, would have focused on Aegon the Conqueror as a flawed, even boorish, character – a portrayal that, while inspired by the historical William the Conqueror, differed from George R.R. Martin’s established lore. Ultimately, it’s probably for the best this version didn’t move forward, as straying too far from the source material is a gamble. The good news is we’re still getting an adaptation about Aegon the Conqueror, which will bring the world of Westeros to the big screen.
5) A Prequel About the Seven Gods
One of the more unusual ideas considered for a Game of Thrones spinoff involved a prequel focusing on the gods of the Faith of the Seven – the Father, Mother, Maiden, Crone, Warrior, Smith, and Stranger. The Hollywood Reporter described it as a show that would portray these gods as real people, almost like a superhero team. The series would have explored the origins of their worship, a fascinating part of the Game of Thrones world that fans hadn’t really considered before. However, this unique concept was also considered risky.
The religions and deities in Game of Thrones are meant to be enigmatic, and this proposed series would have removed that element. It might have worked if it had adopted the kind of insightful commentary found in the A Song of Ice and Fire books, but that would have required significant contributions from George R.R. Martin. It’s not surprising reports suggest the project didn’t progress much. While it might be revived over a series about Aegon’s Conquest, that’s only because we’re already getting another adaptation of that story. Overall, interest in this particular idea seems limited. If HBO wants to delve into the show’s religious history, exploring how the Faith of the Seven replaced the Old Gods would be a far more compelling approach.
4) A Flea Bottom Show
While Game of Thrones introduced memorable characters like Davos Seaworth and Ser Duncan the Tall, the setting of Flea Bottom never quite lived up to its potential. Though we sometimes see how the powerful families of Westeros affect the lives of those living there – and shows like House of the Dragon and A Knight of the Seven Kingdoms have explored this further – it’s clear why HBO considered a spin-off series focused on the poorest part of King’s Landing. Unfortunately, that project was ultimately cancelled, and it’s easy to see why.
A show set in Flea Bottom, a poorer district of King’s Landing, could have been a good addition to the Game of Thrones universe, offering a fresh perspective. The main series largely focuses on the noble families, and while we see how their struggles impact ordinary people, we rarely get to know those individuals well. A Flea Bottom spinoff could have explored the social and economic differences in Westeros, but it faces some challenges. It risks feeling unimportant or simply ending up connected to the problems of the Great Houses anyway. To succeed, the show would need a compelling central storyline, perhaps following someone from Flea Bottom who manages to improve their situation. However, we already have A Knight of the Seven Kingdoms which explores similar themes, so we’re not overly disappointed that this particular spinoff won’t be made.
3) The Jon Snow Spinoff
HBO has primarily focused on creating prequel series based on Game of Thrones, but they did announce a sequel in 2022 centered around Jon Snow. Kit Harington was set to reprise his role, showing what happened to his character after he was banished beyond the Wall and offering updates on other surviving characters from the show. The concept was both promising and potentially challenging. Given the criticism of the final season, this series could have addressed unresolved plot points – like the underutilization of Jon Snow’s true parentage and the hurried ending of the White Walker storyline.
The canceled Jon Snow spin-off might actually be a good thing – it could have damaged the reputation of the original Game of Thrones. While fans would love to revisit those characters (which is why this idea felt more promising than the Flea Bottom prequel), any continuation of the story needs to be handled very carefully. Now that HBO is considering bringing the spin-off back, they need to fully understand the potential dangers before moving forward.
2) The Doom of Valyria
One potential spin-off series that didn’t get made would have explored the history of Valyria’s destruction, an event mentioned but not fully shown in Game of Thrones. Proposed by Max Borenstein (who worked on Kong: Skull Island), it would have focused on the volcanic disaster that wiped out Valyria roughly a century before Aegon Targaryen’s rise to power. HBO ultimately decided against developing this idea, which is unfortunate because it promised to reveal how the Targaryens became the last of the Dragonlords in Westeros. It also stood out from other spin-off ideas – unlike most concepts, it would have centered on a natural disaster, something we haven’t seen explored much in the world of Game of Thrones (aside from the threat of the White Walkers).
Out of all the planned Game of Thrones spinoffs that were cancelled, this one is particularly disheartening. The show promised to expand on the world’s history, with a compelling story and a truly original danger. It had the potential to be a fantastic addition to the franchise. However, it’s not quite as frustrating as the cancellation of another show that actually filmed a pilot.
1) Bloodmoon
HBO’s first planned Game of Thrones spinoff was Bloodmoon, a prequel set long before the events of the original series. It would have told the story of Westeros transitioning from a golden age into the devastating Long Night, when the White Walkers first emerged. Jane Goldman was set to lead the show as writer and showrunner, with George R.R. Martin as a co-producer and Naomi Watts in a starring role, alongside other cast members like Miranda Richardson and Jamie Campbell Bower (according to Inverse). The show made it as far as filming a pilot episode – costing between $30 and $35 million – but HBO and George R.R. Martin both had concerns, and the project ultimately didn’t move forward.
Many fans were excited about a potential prequel series, tentatively titled Bloodmoon, that would have explored earlier eras of the Game of Thrones universe. It’s a real loss that the show didn’t happen, especially since the Age of Heroes and Long Night are such fascinating parts of George R.R. Martin’s world. The team working on it seemed very talented, making the cancellation even more disappointing. It’s frustrating to learn that HBO isn’t considering revisiting these storylines anytime soon.
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2026-06-18 04:12