Another plot could involve Loki stealing a powerful time - related artifact that the Doctor needs to save the universe. The Doctor has to chase Loki across different time periods and planets to get it back. Along the way, they start to understand each other's motives better and develop an unlikely friendship.
One idea could be that Loki and the Doctor team up to stop a time - traveling villain who is trying to rewrite history for their own evil purposes. Loki's trickery and the Doctor's knowledge of time could make for an exciting adventure.
One idea could be Loki making amends with his brother Thor in a very emotional way. Maybe he uses his magic to save Thor from a great danger, thus starting his path to redemption. Another could be Loki helping the people of Asgard rebuild after a great catastrophe, showing his newfound selflessness.
The Master could be a great villain. The Master's devious and power - hungry nature combined with Loki's own mischievousness would create a chaotic and dangerous situation. They might initially team up against the Doctor but then turn on each other.
A fan fiction plot could revolve around exploring the backstories of some of the minor characters in Castleavnia. For example, you could write about a character's life before they became involved in the main events of the Castleavnia world, their family, and what led them to their current situation.
One idea could be a long - lost relative of a main character suddenly arriving in the village. This new character could bring a lot of mystery and secrets with them. Maybe they have a claim to some property in Emmerdale which causes disputes among the locals.
One idea could be exploring what would happen if the Pearson family went on a trip around the world together. They could face various cultural clashes and personal growth moments during the journey.
One idea could be Yzma getting a chance to redeem herself. Maybe she accidentally discovers a new magic that can reverse all the bad things she's done in the past and she has to decide whether to use it for good or for her own gain.
Another plot might involve Yennefer and Geralt having to deal with a magical curse that affects their relationship in unexpected ways. For example, they might switch bodies and have to understand each other's struggles better. In the world of Witcher fan fiction, the possibilities are really endless. Writers can take the existing lore and twist it to create engaging stories.
One idea could be a story where a young, ordinary person discovers they have a hidden power related to a lesser - known Marvel character. For example, they find out they can communicate with Lockjaw, the Inhumans' teleporting dog, and this ability leads them on an adventure across different Marvel universes.
One idea could be that the Goonies find an ancient map leading to a lost underwater city. They then have to build a special submarine to reach it. Along the way, they face new villains who also want to claim the treasures of the underwater city.
One idea could be a time - travel plot where a modern - day vampire hunter travels back to the world of Dracula 3000. They could use their knowledge of modern technology and vampire lore to try and stop Dracula from achieving his evil plans. Maybe they bring a UV light gun or something.