One interesting plot could be about Harry forming an unexpected alliance with some Slytherin students during his 5th year. They might team up to uncover a mystery within Hogwarts that involves a dark magic item that was planted there by Death Eaters. This could lead to a lot of character development as they learn to trust each other despite their house differences.
One interesting plotline could be a deeper exploration of the Triwizard Tournament tasks from a different perspective. Maybe showing the behind - the - scenes preparations by the champions that we didn't see in the original book. Another could be a new relationship developing between characters, like a friendship between a Hogwarts student and a Durmstrang student that impacts the events of the tournament.
In many Harry Potter 8th year fanfic plotlines, the exploration of the wizarding world outside of Hogwarts becomes a major focus. Harry and his friends could be traveling to different wizarding communities, learning about their cultures and magic. They might encounter new magical creatures and have to figure out how to interact with them. There could also be a mystery involving a powerful, ancient magic that is somehow related to their 8th year at Hogwarts, and they have to solve it to keep the wizarding world safe.
Some fanfics in 'harry potter eighth year' might focus on the characters' growth in terms of their magical abilities. Harry, for instance, could be exploring new spells or forms of magic that were previously unheard of. There could also be a plot where the students are trying to rewrite the rules of Hogwarts, to make it more inclusive and modern, which would lead to a lot of conflict and resolution within the school community.
A great plot could be focusing on the love triangle between Harry, Ginny, and Hermione. Harry might struggle with his feelings for Ginny while also being really close to Hermione, and this could create some interesting drama and tension. Also, it could tie in with the events of the 6th year like the search for Voldemort's Horcruxes.
One interesting plot twist could be that a minor character from the previous years turns out to be a key figure in the fight against Voldemort. For example, a Hufflepuff student who was always in the background might have some secret knowledge or power that helps Harry in his final battle.
Another interesting plot could be that Harry's connection to Voldemort causes some strange magical disruptions during the Triwizard Tournament. These disruptions seem like accidents at first, but Harry gradually realizes they are being caused by his own dark - side related powers that are being awakened in his fourth year.
Sirius Black can be a very popular character in 'harry potter 5th year fanfic'. Since he has a close relationship with Harry, fanfic writers might focus on his interactions with Harry during this year. Maybe he gives Harry some secret advice about dealing with the Ministry or the Death Eaters, which adds an extra layer of intrigue to the story.
Some fanfictions in Harry Potter Year 8 focus on the characters dealing with the aftermath of the war. For example, Neville could be working on a project to bring back some of the plants that were destroyed during the battle. This not only helps to heal the physical damage but also serves as a symbol of the wizarding world's recovery. It also gives Neville a chance to shine in a different way than he did during the war.
One interesting plot could be an assassin who is secretly a double agent within Voldemort's ranks. They pretend to be working for him but are actually protecting Harry Potter and his friends.
A plot where the village is suddenly under a dark spell and the young wizards and witches from Hogwarts have to work together to break it. They'll face challenges like deciphering ancient runes and battling dark creatures. This would be a great opportunity to see different characters' skills and teamwork.