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It's been known for a while that this series of Game of Thrones would be the last. But that's not to say that this will be the end.
For some years writers have been working on a number of stories and scripts to take audiences beyond the eighth season.
And considering the end of the most recent episode, which saw the death of the Night King and the annihilation of the entire army of the undead, it's perhaps quite fitting that it a future spin-off looks likely to give fans an insight into the origins of the White Walkers.
The story for the 'successor show', as the saga's creator George. R. R. Martin likes to refer to it, has been devised by author and showrunner Jane Goldman - who wrote screenplays for Kick-Ass, X-Men: First Class and Kingsman: The Secret Service.
The latest episode saw the Night King killed by Arya Stark. Credit: HBO
The official synopsis reads: "Taking place thousands of years before the events of Game of Thrones, the series chronicles the world's descent from the golden Age of Heroes into its darkest hour.
"And only one thing is for sure: from the horrifying secrets of Westeros' history to the true origin of the White Walkers, the mysteries of the East, to the Starks of legend... it's not the story we think we know."
It's yet to be given a formal title but in a blog post, Martin said he hopes it will be called The Long Night, referencing a period thousands of years before the current series of GOT.
This is the period which saw the White Walkers enter Westeros from the North and drive the humans southwards. Humans then joined forces with the Children of the Forest to battle the White Walkers, with the first members of the Night's Watch managing to force them back in The Battle for the Dawn.
The new series could tell the origin story of the Wall and the White Walkers. Credit: HBO
And in order to keep Westeros safe, Bran the Builder - an ancestor of the Stark house - raised the Wall using ice and magic.
The name also makes reference to the title of the latest episode of the current series, which saw the epic Battle of Winterfell, between the living and the dead.
What do you think? Had enough of the White Walkers or can't wait to discover more about Westeros before Jon Snow and Daenerys Targaryen? Head over to Game of Thrones: Westeros Posting on Facebook and let us know what you think.
Featured Image Credit: HBO