Another plot could involve a revolution sparked by the maesters. Tired of being used as mere tools by the political powers, they use their knowledge of magic, history, and medicine to incite change. They start spreading subversive ideas among the people through the ravens and secret networks they have built over the years.
One idea could be exploring what would happen if a minor character like Gendry had been secretly trained in magic. He could use his newfound powers to unite the smallfolk against the warring nobles. Another plot could revolve around a female knight from the North who disguises herself as a man to fight in the wars, and along the way, she discovers secrets about the White Walkers that no one else knows. Or perhaps a fanfiction where Daenerys and Sansa form an alliance much earlier and together they reshape the power dynamics of Westeros.
A really cool 'Game of Thrones fanfiction' plot could involve the resurrection of some of the dead characters in a different way. For example, what if Ned Stark was brought back not as a vengeful wraith but as a wise advisor to a new king or queen? His honor and wisdom could shape the future of Westeros in a completely new direction. And it would be interesting to see how the other characters react to his return.
Perhaps a fanfiction where Daenerys Targaryen lands in Westeros earlier and forms an alliance with the Starks before the events of the main series. This would completely shift the political landscape and the fight for the Iron Throne. She could bring her dragons to help fight the White Walkers from the start.
One idea could be exploring what would happen if a minor character, like Gendry, had a more central role in the fight against the White Walkers. He could lead a group of common folk and prove that the power doesn't always lie with the nobles.
One interesting plot idea could be the return of a long - thought - dead character with a new mission. For example, if Ned Stark somehow came back and had to navigate the even more complex political landscape of Westeros. Another could be the exploration of the relationship between Daenerys and Jon Snow in a more in - depth way, perhaps with some new challenges that test their alliance.
Another plot could involve a goddess who was once worshipped in ancient Westeros but forgotten over time. She resurfaces during the chaos of the Game of Thrones. This goddess has the power to manipulate the elements and she decides to test the worthiness of the claimants to the Iron Throne by sending various trials their way.
Perhaps a plot where the gamer character discovers a hidden aspect of the magic in the Game of Thrones world through their unique 'gamer' perspective. This could lead to new powers being unlocked and changing the power dynamics among the different houses.
Perhaps a Futa warrior from beyond the Wall who comes to the Seven Kingdoms. This character could bring new fighting techniques and a different perspective on the war for the North, and interact with well - known characters like Jon Snow in unexpected ways. They might even have knowledge of the White Walkers that could change the course of the story.
One idea could be a story where the survivors of the Fallout world discover ancient Valyrian steel weapons and try to figure out how to use them. Maybe they think the weapons have some sort of magical power that could help them in their post - apocalyptic struggles.
Another plot could involve a battle where the wildlings and the Night's Watch team up against a new, unexpected threat from beyond the Wall. This threat could be a powerful sorcerer who has the ability to raise the dead in a more terrifying way than the White Walkers ever did. They would have to put aside their differences and fight together, which would be full of internal conflicts and drama.