There could also be a fanfiction where Harry's last kiss is with Hermione in an alternate universe. Maybe they have developed a different kind of relationship over the years of fighting dark forces together. Their last kiss could symbolize a strong bond of friendship that has turned into something more profound in the face of danger.
The 'Last of His Kind' in Harry Potter fanfiction could be a situation where a magical creature is the only one left. Maybe it's a unique magical beast that was hunted nearly to extinction. The fanfiction might explore how this creature, being the last, has to deal with a world that no longer has others of its kind. It could befriend the main characters, like Harry and his friends, who then try to protect it from those who would do it harm.
I'm not entirely sure as there could be many different interpretations of such a fanfiction. It might be about the last male character in the Harry Potter universe in a story created by a fan. Maybe it focuses on his final adventure, his relationships, or his role in the end of a made - up scenario.
One idea could be a crossover where the magic from Harry Potter is used to combat the infected in The Last of Us world. For example, the Patronus charm could be used to repel the Clickers as it is a powerful form of positive magic. Another could be that some of the characters from The Last of Us are transported to the Hogwarts world and have to learn magic to survive in this new and strange place. They could be sorted into houses based on their personalities.
Obviously, Harry Potter would be one of the main characters. He's the central figure in the fight against Voldemort in the original series, so he'd likely be leading the last stand in the fanfiction as well. Ron and Hermione would also be main characters, as they are Harry's closest friends and allies.
One common theme is the power of friendship. In both 'Harry Potter' and 'The Last Airbender', the main characters rely on their friends. So in fanfiction, this is often explored further. Another is the battle between good and evil.
Survival is a very common theme. Since the main character is the last human, they have to find ways to stay alive in a world that is either empty or full of danger. For example, in many of these fanfics, Harry has to figure out how to get food and shelter without the support of the wizarding community as it once was.
A common theme is survival. Just as in The Last of Us, survival is key. In these fanfictions, the characters from both universes have to find ways to stay alive, whether it's from the infected in The Last of Us or from dark wizards in Harry Potter. Another theme is adaptation. Characters like Ellie or Joel have to adapt to the magical world, and Harry Potter characters might have to adapt to a more post - apocalyptic situation.
Another common theme is regret. Maybe a character realizes too late how much they love another, and the 'last kiss' is a bittersweet moment filled with all the things they should have said or done. In some fanfictions, it can also be about sacrifice, where a character gives up their relationship for the greater good, and that 'last kiss' is a symbol of their selfless act.
One interesting 'last will' scenario could be a character leaving behind a powerful magical artifact in their will. For example, a wizard might leave a wand with special properties to Harry Potter, which could be a key to defeating a new dark force. This would add an extra layer of mystery and power to the story.