One interesting plotline could be the exploration of how different wizarding families deal with the war. For example, some might be forced to choose sides while others try to stay neutral. Another could be the discovery of new spells and magic specifically created for the war effort. And there might be stories about how Hogwarts students form secret resistance groups within the school.
A great plotline could be the idea of a prophecy that was hidden until the war. It could be about a powerful wizard or witch who has the ability to end the war, but no one knows who it is. This would create a race between the two sides to find this person first. Also, some fanfictions might look at how the Muggle world is affected by the wizarding war in ways they don't even realize, and how wizards try to keep it a secret from Muggles while fighting their own battles.
In some fanfictions, there could be a plotline where the Death Eaters have a new and more powerful weapon. This forces the Order of the Phoenix to come up with creative ways to counter it. There may also be a focus on the relationships between characters that are strained during the war, like Harry and Draco, and how they navigate their differences. Additionally, fanfictions might explore how the magical creatures side during the war.
One interesting plotline could be Harry having to face new and more powerful dark wizards that are emerging in the post - Voldemort era. He might have to use his skills in a different way. Another could be Harry exploring his family's history more deeply and finding secrets that change his perception of himself. Maybe he discovers some long - lost relatives who have their own magical abilities and stories.
In some 'Spoils of War' fanfictions, the spoils could be knowledge. Maybe a hidden library full of dark or ancient magic spells is found. This knowledge then becomes a source of conflict as different characters vie for control over it. Some might want to use it for good, while others for more sinister purposes.
In this type of fanfiction, a great plotline could be the exploration of the characters' post - war traumas through their relationships in the harem. Harry, for instance, might have nightmares about the war. His 'harem' of friends and potential love interests could be there to comfort him. Hermione could use her intelligence to help him analyze his feelings, Ginny could be the one to bring out his more carefree side, and other characters could contribute in their own ways. This way, the harem setting becomes a means of healing and growth for all the characters involved.
One interesting plotline could be about the rebuilding of Hogwarts. The war has left it in ruins, and the characters have to come together to restore it to its former glory. They might face challenges like finding the right magical materials and dealing with the memories of the battles that took place there.
One interesting crossover could be a magical school exchange. Wizards from the Harry Potter universe visit Waverly Place's wizard school and vice versa. They could compare and contrast their different magical systems, like how spells are cast or potions are made. It would be really cool to see Harry Potter characters interact with the Russo family and their friends.
One interesting plotline could be a muggle accidentally stumbling into the wizarding world and having to learn the ropes quickly. For example, they might find themselves in Diagon Alley and be completely bewildered by all the magical shops and strange creatures. Another could be a wizard falling in love with a muggle and trying to keep their magical identity a secret while still building a relationship. And a third could be muggles being recruited to help with a wizarding problem that only their unique muggle skills can solve.
One interesting plotline could be about the Founders' initial meetings and how they decided to build Hogwarts. Maybe they had different ideas at first but then came to a consensus on the school's values and layout.
Well, perhaps in this fanfiction, the Phoenix plays a role in revealing hidden secrets about Harry's family. It could lead Harry to discover an ancient magic that was long forgotten by the wizarding world, which was somehow related to his family. This could then set him on a new quest, different from the one in the original books, and change the course of the story completely.
A common plotline is the characters' post - graduation plans. Some fanfictions might explore how Harry, Hermione, and Ron decide on their career paths. Maybe Harry is conflicted between becoming an Auror or a teacher at Hogwarts. Hermione could be considering further studies in ancient magic, and Ron might be thinking about joining his brothers in the joke shop business. This exploration of their future dreams and how they support each other during this transition period can be really engaging.
A possible plotline could be a time - travel fanfiction where Harry and his friends accidentally travel back in time to the era when the founders of Hogwarts were alive. They get to interact with the founders, learn about the early days of Hogwarts, and face challenges that come with changing the past or ensuring that history unfolds as it should. This would involve dealing with the different magical cultures and practices of that time, as well as the complex personalities of the founders.