For House of Dark Shadows fanfiction, you could do a 'what - if' scenario. What if the main character had made different choices throughout the story? How would that change the outcome? You could also introduce new supernatural elements, like a mysterious creature that lurks in the shadows of the house that no one has ever seen before. Additionally, exploring the family history of the main characters in greater depth and how it ties into the current dark events in the house would make for an interesting fanfiction.
A great plot for House of Dark Shadows fanfiction could be to create a parallel universe where the events of the story took a different turn. Maybe the main villain had a change of heart early on, and how that would affect the rest of the characters and the overall story. Also, you could write about a character who discovers a hidden power within the house that was previously unknown, and they have to figure out how to use it or keep it from falling into the wrong hands. Or, write a story from the perspective of the house itself, as if it were a sentient being with its own motives.
One idea could be exploring a different ending for the story. Maybe the main characters find a new way to defeat the evil forces that was not shown in the original. Another could be a time - travel based fanfiction where a character goes back in time to change certain events that led to the current situation in Dark Shadows 2.
One idea could be creating an OC who is a long - lost relative of one of the main characters in Dark Shadows. They could come to town with a mysterious past and strange powers. Another could be an OC who is a time - traveling historian, coming to study the events in Dark Shadows' universe. Maybe an OC that is a vampire hunter with a unique set of skills and a personal vendetta against a particular vampire in the story.
Another plot idea is to create a parallel universe where the rules of the 'game of shadows' are slightly different. This could lead to new alliances and conflicts among the characters.
One idea could be exploring the backstories of the main characters in the Black Shadows world. Maybe there was a tragic event in their past that shaped who they are. Another could be a what - if scenario, like what if a certain character had made a different choice at a crucial moment. It could lead to a completely different story arc.
One idea could be a story where the characters from Naruto are transported to a different dimension within the League of Shadows' realm and have to fight new and unknown enemies. They could form unexpected alliances with some of the League of Shadows' members who have a change of heart.
Another concept could be a 'what if' scenario. Like what if a doll and their master had a complete role reversal? This would change the whole dynamic of the story and could lead to some really unique plotlines.
One idea could be that Spider - Man discovers a new shadow - based villain who can manipulate the darkness in ways he's never seen before. The villain could be creating shadow creatures to terrorize the city at night.
One idea could be an OC who is a brilliant but unorthodox medical student. They constantly clash with House in their diagnostic methods yet prove to be surprisingly accurate at times. For example, they might use a new technology or approach that House is initially skeptical about but later comes to respect.
Well, you could write a fanfiction where the House of Black has to face an external threat. Maybe a dark wizard from another family is trying to steal their secrets or undermine their power. The fanfiction could focus on how the members of the House of Black strategize and use their unique skills to defend themselves. Or perhaps a story about a forbidden love within the House of Black, where two members from different branches of the family fall in love, and they have to deal with the strict family rules and traditions that oppose their relationship. Also, a plot could be about a young member of the House of Black who discovers a new form of magic that has been lost in the family for centuries and how they bring it back to glory.
In some fanfiction, there might be a plot where Claire Underwood has a female rival within the political arena. This could lead to intense power struggles between the two women, with Claire having to use all her wits and charm to outmaneuver her opponent. There could be a lot of political intrigue, back - stabbing, and strategic moves.