Time travel in a Game of Thrones fanfiction can have a huge impact on the storyline. If a character travels forward in time, they could bring back knowledge of future events and try to prevent disasters. Or if they travel back, they might accidentally change things that were meant to happen. This could lead to different characters rising to power or falling from grace. For example, if a time traveler influenced Tyrion's trial, the outcome could change his entire future and the future of the Lannisters.
There are likely many fanfictions out there with this concept. In some, Jon might time travel to the time before the White Walkers became a major threat. With Ghost, who has a special connection to the supernatural in the 'Game of Thrones' world, they could find a way to stop the creation of the White Walkers altogether. This would rewrite the entire history of Westeros and save countless lives.
There's also 'Through the Veil of Time in Westeros'. This one stands out because it not only has time travel but also delves deep into the magic and mythology of the 'Game of Thrones' world. The protagonist travels through time and discovers secrets about the origin of magic in Westeros that were previously unknown, and their actions in the past start to have a ripple effect on the present and future of the Seven Kingdoms.
In some fanfictions, a plot twist could be that the time - traveling Jon and Ghost end up in an alternate version of Westeros. Here, the rules of magic are different, and they have to adapt quickly. Maybe the White Walkers are not the main threat in this alternate world, but there's a new, more powerful and sinister force that they have to face, all while trying to find their way back to their own time and world.
If Jon Snow knew his true identity as a Targaryen sooner, he could have made different decisions. He might have been more assertive in his claim to the Iron Throne. Instead of being a reluctant leader, he could have used his true heritage to unite the North and the other kingdoms against the White Walkers more effectively.
One great Arya and Jon fanfiction is 'The North Remembers'. It shows a unique bond between them as they face the challenges in the North together. It has some really interesting plot twists and great character development.
I would recommend 'Jon and Arya: The Reunion'. This fanfiction is short but sweet. It focuses on the emotional moment when they finally see each other again. It doesn't get into a lot of complex plotlines but rather just gives you that warm feeling of their sibling love.
I'm not sure specifically if there is a well - known fanfiction with exactly that premise. However, given the popularity of both Jon Snow and the concept of deifying characters in fanfiction, it's very likely. Fanfiction writers often take beloved characters like Jon and put their own spin on them. They might give him god - like abilities such as super strength, the ability to control the elements, or even the power to see the future, which would completely change the dynamics of the story.
There's a fanfic called 'Jon and Ygritte: Beyond the Wall'. This piece focuses on their adventures together. It details how they hunt, survive in the harsh environment, and the small moments of tenderness they share. It gives a vivid picture of their life outside the normal Westerosi society, which makes their relationship even more interesting.
I really like 'Brothers in the North'. In this fanfiction, Robb and Jon are depicted as having a very strong bond. It shows how they might have worked together to face the various threats in Westeros. The characterizations are well - done, and it has an interesting plot that keeps you hooked from start to finish.