Some interesting fanfic ideas could involve the wizards from 'Harry Potter' trying to prevent the events of 'Game of Thrones' from happening. Maybe they see the future of Westeros through some form of divination and decide to interfere. Another idea is a character from 'Game of Thrones' somehow traveling to Hogwarts and learning magic, then bringing that knowledge back to Westeros to change the power dynamics. And a fanfic could explore what would happen if the Deathly Hallows were in the 'Game of Thrones' world. Would they be coveted by the various lords and queens? How would the power of the Elder Wand, Resurrection Stone and Invisibility Cloak affect the already complex world of Westeros?
A crossover might also involve the magical creatures. Dragons in Game of Thrones are very different from those in Harry Potter. A fanfic could explore what would happen if a Hungarian Horntail met Drogon. Would they fight or form an alliance? And how would the characters in both universes react to such an encounter?
One interesting crossover could be a scenario where the magic from Harry Potter is introduced into the world of Game of Thrones. For example, wizards and witches could be inserted into the different kingdoms of Westeros. They might use their magic to influence the power struggles, like using spells to protect a certain lord or to expose the secrets of another. Another idea could be characters from Game of Thrones traveling to Hogwarts. Imagine Jon Snow learning about magic and how it could be used to fight the White Walkers.
One interesting crossover could be a scenario where the dragons from Game of Thrones meet the magical creatures in Harry Potter. For example, Drogon could fly over Hogwarts, causing quite a stir among the students and teachers. Another could be characters like Jon Snow and Harry Potter teaming up. Jon's skills in combat and leadership combined with Harry's magic would make for an exciting adventure.
One idea could be a fanfic that focuses on the backstory of a minor character, like Gendry. Explore his life before he met Arya, how he survived on his own in King's Landing, and his early days as an apprentice to the blacksmith. Another could be a story set in a different part of Westeros during the events of the main series, perhaps in Dorne, and show how the political unrest there affected the common people. A third idea would be to create a fanfic where the White Walkers are not the main villains, but instead there is a new, more insidious threat emerging from within the Seven Kingdoms itself.
One idea could be to write a fanfic about a character who was thought to be dead but actually survived and is secretly plotting revenge. For example, a Stark family member who everyone believed perished in the Red Wedding.
One idea could be creating a new magical game within the Hogwarts world. For example, a game that combines elements of Quidditch and wizard dueling. The characters could form teams and compete in a tournament where they have to both fly on brooms and use spells against each other. This would add a new and exciting dynamic to the fanfic.
One idea could be to explore the backstories of minor characters in Yi Ti. For example, a young servant in a noble house who has dreams of rising above his station. He could get involved in political intrigues that mirror the larger power struggles in Westeros.
Another plot could involve the Death Eaters trying to take over Westeros. Voldemort sees the chaos in the Seven Kingdoms as an opportunity to expand his power. The characters from Game of Thrones have to learn about magic quickly to defend their lands against the dark wizards. For example, Jon Snow could be one of the first to realize the potential of magic and try to form an alliance with the wizards from Hogwarts.
One idea could be exploring the breeding of dragons in a different way. Maybe a fanfic where characters try to breed dragons with unique traits by using magical or scientific means in the 'Game of Thrones' world. Another could be about the breeding of horses with special abilities for the knights to ride into battle. For example, horses that are faster or more resistant to the cold of the North.
One interesting plot idea could be exploring what would happen if a minor character, like Gendry, had secretly been trained in magic all along. He could use his newfound powers to try and claim the Iron Throne in a different way than the main characters. Another idea is a fanfic set in the past, showing how the relationship between the Starks and the Lannisters first started to sour. Maybe a long - forgotten event that set the stage for all their future conflicts.