One possible plot could be that after some time away, Harry has gained new skills or knowledge. Britain is facing a great threat, perhaps a magical one if it's in a wizarding world context. The people realize that Harry is the key to solving the problem, so they try to convince him to come back. They might send his old friends to persuade him, and he has to decide between his new life and his old homeland that now needs him.
Maybe in the fanfiction, Harry left Britain due to some misunderstandings or a fallout with the establishment. 'Britain Wants Harry Back' could involve a change in the political or social situation in Britain. A new, more benevolent leadership has emerged that recognizes Harry's value. They start a campaign to bring him back, highlighting his past heroics and how his return can inspire the nation again. Harry, on the other hand, is hesitant as he's built a new life elsewhere.
It could be that Harry has a unique power or ability that only he can use to save Britain from an impending doom. The fanfiction might explore the idea of how the British public, who once might have been divided in their opinions of Harry, now unites in their desire to have him back. There could be a series of events that show the lengths to which Britain will go to get Harry back, while Harry is conflicted about whether he wants to return to the place that has both good and bad memories for him.
Ron could also be a major character. He and Harry have a long - standing friendship. Ron might be torn between his loyalty to Harry's new life away from Britain and his own love for his homeland. His perspective could add an interesting layer to the story as he tries to balance both.
One possible plot could be that Hermikne realizes she has always had deeper feelings for Harry. She might start by reminiscing about their past adventures together at Hogwarts. Then, she could try to find ways to reconnect with Harry, perhaps by showing up at places she knows he frequents. She might also use her intelligence to create situations where they are forced to interact and rekindle their friendship which could potentially lead to more.
Well, perhaps in this fanfiction, Harry Potter accidentally casts a spell that has a domino effect on the magical economy of Britain. For example, he might mess up a powerful charm related to the wizarding currency, leading to a rapid devaluation. Or maybe he uncovers some dark secret about the Ministry of Magic's financial management that causes a mass panic and economic collapse.
One possibility is that Artemis realizes Percy's unique skills and abilities are crucial for a quest she has in mind. Maybe there's a powerful enemy emerging that only Percy can help defeat. So, she tries to convince Percy to join her side again, perhaps offering him some kind of reward or appealing to his sense of heroism.
Well, perhaps in this fanfiction, Naruto left because he felt unappreciated in the Leaf. But then the Leaf discovers some secrets or powers that are tied to Naruto. They start to see all the good he has done in the past and make a big effort to bring him back. They might hold a big ceremony to welcome him and show how much they truly value him now.
In this fanfiction, Harry could be in a post - war scenario where he is longing for a new beginning. The idea of having a baby could represent hope and a fresh start for him. He might face opposition from some of his friends who think he's too young or not ready, but he is determined to make it happen. He starts learning about how to take care of a baby in the wizarding world, which is quite different from the Muggle world.
One possibility is that Naruto has left Konoha voluntarily after some great tragedy where his godlike powers were misused. Konoha, now in danger again, wants him back. They send out a team of shinobi, including some of his old friends like Sasuke and Sakura. The story could then focus on their journey to convince Naruto to return and help them fight off a group of rogue ninja who are causing chaos with powerful, dark jutsu.
Well, perhaps Sasuke has been on a journey of self - discovery and during that time he understood that Sakura was the one he always loved. He might come back to the village and start by simply being around Sakura in a non - intrusive way. He could help her with her medical work or protect her on her missions. Gradually, he'd open up about his feelings and hope that she still has feelings for him too.
One reason could be the media attention. After all they've been through, they might be tired of constantly being in the spotlight. The British wizarding press could be hounding them, so they leave to get some privacy.
One possible reason could be to seek new opportunities. In fanfiction, the States might be depicted as a place full of exciting prospects in various fields like magic (if it's a Harry Potter - related fanfic) or just in general life. For example, he could be interested in exploring different magical cultures there.