One plotline could involve Clark Kent trying to find a way back to his own universe while being stuck in the Game of Thrones world. Along the way, he might form alliances with characters like Jon Snow or Daenerys. He could teach them about his values of truth and justice, and in return, they could teach him about the ways of Westeros. He may also have to face challenges from the various magical elements in the Game of Thrones world, such as the Children of the Forest or the Three - Eyed Raven.
There's also 'The Kryptonian in King's Landing'. It imagines Clark Kent being dropped into the middle of the power struggles in King's Landing. His moral code from Smallville clashes with the cut - throat nature of the Game of Thrones world. He has to decide how much of his true self to reveal while trying to keep the peace and protect the innocent.
One possible plotline could be a character's accidental transformation. For instance, a young character exploring an ancient ruin stumbles upon a magical artifact or spell that causes them to transform into a dragon. This then sets them on a journey to find a way to reverse it or to use their new form for good.
One possible plotline could be the characters in the afterlife having to atone for their sins. For example, characters like Joffrey might face some sort of punishment or redemption arc in the afterlife realm. Another could be the great heroes of Westeros coming together to fight against some new threat that exists even in the afterlife. Maybe they have to stop a dark force from spreading chaos among the souls. And perhaps the Starks and Lannisters could put aside their differences and work towards a common good in this afterlife scenario.
Another plotline might involve a Reyne character getting involved in the political intrigue at King's Landing. They could use their knowledge of the Lannisters' past deeds against House Reyne to manipulate the situation and gain power for themselves and their house.
One possible plotline could be Shirou finding himself in Westeros and using his skills as a swordsman to get involved in the power struggles. Maybe he becomes a knight in someone's service.
Clark Kent died in a dramatic and heroic way. It was a major event in the comic's storyline.
One possible plotline could be the Hogwarts students being transported to the world of Game of Thrones and having to navigate the political intrigue and power struggles using their magic. For example, Hermione could use her intelligence and knowledge of spells to outwit the scheming lords in Westeros.
One possible plotline could be that a character from 'Harry Potter' world, say a wizard who loves to experiment with muggle instruments, travels to the 'Game of Thrones' world with his ukulele. He could use magic on the ukulele to create unique sounds that either charm or terrify the people in Westeros.
One common theme is his struggle to balance his normal life as Clark Kent and his superhero life as Superman. It's a classic conflict that many fanfictions explore.
A 'Game of Thrones' future fanfic might explore the consequences of the events in the original series. For instance, if Jon Snow's true identity becomes widely known, how would that reshape the political landscape? Some might see him as the rightful heir and support his claim to the Iron Throne, while others might oppose him out of fear or self - interest. Also, the White Walkers' threat might not be fully over, and there could be a resurgence of the undead in a different form.