Well, you could write a fan fic that focuses on the love story between two characters who barely interact in the original Licanius Trilogy. Maybe they have a hidden connection that was never explored before. Or perhaps a fan fic about a character who discovers a hidden power within themselves during a time of great crisis in the trilogy's world. This new power could change the course of the story. Also, a story about a group of characters who get lost in a mysterious and dangerous part of the trilogy's setting that was only briefly mentioned in the original books could be really engaging.
Definitely Licanius himself. His complex personality and the decisions he makes throughout the trilogy offer a lot of room for exploration in fan fiction. Another interesting character is the antagonist. You can dig deeper into their motives and maybe give them a more sympathetic backstory. And then there's the wizard character, who has a lot of mysterious powers that could be further developed in fan - made stories.
One idea could be a story where the Mandalorian has to team up with an old enemy to fight a new, greater threat. Maybe a powerful Sith Lord emerges and they have to put aside their differences.
One idea could be exploring a different origin for Toothless. Maybe he was part of an ancient dragon tribe that was thought to be extinct. Another could be a story where Hiccup discovers a new dragon species that has unique abilities and forms an alliance with them. A third idea is a time - travel fan fiction where Hiccup goes back in time to prevent a great dragon war from ever starting.
A great plot for Warframe fan fiction could be a Tenno getting trapped in a parallel dimension where the rules of the Origin System are all messed up. They have to find a way back while dealing with strange versions of familiar enemies. Or perhaps a story about a Tenno who discovers a hidden Orokin vault that contains not only powerful weapons but also a secret that could change the balance of power in the Origin System. Also, a plot about a Tenno's struggle to control a newly acquired and extremely powerful Warframe that has a mind of its own could be really engaging.
Well, you could have a survivor fan fiction where a contestant has a hidden skill, like being able to communicate with animals on the island. This could give them an edge in finding food and avoiding danger. Or perhaps a story where there's a traitor within the group, someone who is secretly working with the show's producers to create more drama. Also, a plot where the survivors find a map that leads to a hidden part of the island with a bountiful supply of food and shelter.
One idea could be that the Ghostbusters discover a new type of ghost that can possess technology. So they have to find a way to stop it from taking over all the electronics in the city. It would be a race against time as the city starts to descend into chaos with machines going haywire.
One idea could be a story where a minor character from the game gets a chance to become a hero. For example, a low - level soldier who discovers a hidden power within himself and uses it to save his comrades during a crucial battle.
One interesting plot idea could be exploring what would happen if Aladdin's three wishes had unforeseen consequences that affected not just him but the whole city. For example, a wish for wealth might lead to an economic imbalance.
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.
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.