Another interesting plot would be if Jon Snow went back to the time when his father, Ned Stark, was a young man. He could interact with his father, perhaps change some small events that had big consequences later. He might also learn more about his family's secrets directly from Ned, things that were lost in time in the original story.
Jon Snow could be sent back to a time just before Ned Stark's father was killed. With his future - learned wisdom, he could try to save his grandfather and thus change the entire Stark family's fate. He may also discover secrets about his own lineage that were lost in time. This could lead to him having more power and influence in the past, as he might be able to claim certain rights or titles based on this new - found knowledge.
One plot idea could be Kagome accidentally traveling to the world of 'Game of Thrones' during a time when Jon Snow is in a great struggle. She could use her spiritual powers from her own world to help him sense approaching danger, like the White Walkers. For example, she might be able to detect their movements in a way that no one in Westeros can.
One idea could be Jon Snow being the Kingsguard during a time of great political unrest in Westeros. He has to protect a young and inexperienced king from various assassination attempts by rival houses. Another plot could involve him having to choose between his loyalty to the king and his loyalty to his Stark family when a conflict arises between them. Maybe he discovers a dark secret within the Kingsguard that threatens the stability of the realm.
One plot idea could be that Jon and Sansa travel back to the time before their family's downfall. They could use their knowledge of future events to prevent Ned Stark's execution. For example, they might be able to expose Littlefinger's schemes earlier. Another idea is that they travel to a future time where the White Walkers have been defeated, but they find new threats emerging and have to figure out how to deal with them. They could also travel to different kingdoms in different eras and learn about different cultures and forms of governance, which could then help them better rule Winterfell and the North.
Another idea is a love - triangle - like situation. Suppose Alicent is initially attracted to a powerful lord in King's Landing, but then she meets Jon Snow. Jon's different values and his sense of honor start to draw Alicent towards him, creating a complex web of relationships and emotions. This could lead to a lot of tension and drama within the court.
One idea could be that they face challenges from their different backgrounds. Jon is from the Night's Watch and Ygritte is a wildling. Their child could be a symbol of unity between the two groups. People might be skeptical at first, but as the story progresses, they see the potential for peace through their baby.
One interesting plot idea is that Jon discovers his dragon form is the key to uniting the Seven Kingdoms. His dragon abilities give him an edge in battles and also make him a symbol of hope and unity. Another is that his dragon form has a connection to the ancient prophecies in Westeros, and he has to figure out how to fulfill them. Maybe his dragon form is related to the Others in some unexpected way, like being able to communicate with them or having a power that can defeat them.
Well, in some fanfictions, the baby could be a symbol of hope. As Jon and Daenerys' child, it represents the union of two powerful houses. The baby might grow up to be a great leader, trained in both the ways of the Targaryens and the Starks. It could bring about new laws and a more just society, learning from the mistakes of the past rulers in Westeros.
One plot idea could be Arya and Jon teaming up to uncover a long - hidden family secret. Maybe there's a lost Stark heirloom that has some sort of power, and they have to go on a quest to find it. Another idea is that they are both sent on a diplomatic mission to an unfriendly kingdom, and they have to use their unique skills - Arya's stealth and Jon's leadership - to succeed.
Another plot could involve Jon Snow's werewolf nature being related to his true parentage. What if his Stark and Targaryen blood combined in a way that made him a werewolf? This could lead to a whole new take on his destiny and role in the power struggles of Westeros.