One idea could be to explore what would happen if Simba had a different mentor other than Rafiki. Maybe a new character who teaches him some unique skills. Another idea is to write about the backstory of Scar, like his early days in the pride and what led him to become so power - hungry. Also, you could create a fan fiction where Nala has a more prominent role in saving the pride, not just following Simba but leading in her own way.
One idea could be that Vitani and Kiara team up to protect the Pride Lands from a new threat, like a group of rogue lions from a far - off land. They start off distrusting each other but gradually learn to work together and become friends.
One idea could be exploring what would happen if Scar had a secret plan for Kovu before his death. Maybe he left behind some instructions for Kovu to take over the Pride Lands in a different way than Simba's rule. Another could be a story where Kovu discovers a hidden connection between him and Scar, like they are related in a way no one knew. This could lead to a conflict within Kovu as he tries to figure out his true place in the Pride Lands.
A fanfiction could also be about the hyenas getting a second chance. Maybe they find a new place to live and try to form a more positive community, with some help from the lions.
One idea could be to explore what would happen if Simba had a different mentor. For example, instead of Rafiki, it could be a new character who teaches him a different way of leadership. Another idea is to create a story where the hyenas reform and try to integrate into the pride. Maybe they realize the error of their ways after Scar's downfall and want to make amends.
First, think about the characters you want to focus on. It could be the main ones like Simba or new ones you create. Then, decide on a basic plot. Maybe it's a story about a new threat to the pride. After that, start with an engaging opening. For example, 'In the heart of the Pride Lands, a strange wind blew, carrying with it a sense of unease.'
Another possibility is a human who has a special power, like being able to communicate with all animals. They come to the Pride Lands during a time of trouble, such as a drought or an invasion from another group of animals, and use their power to help the lions and other creatures.
One idea could be to explore the relationship between Kiara and Kovu in a human setting. Maybe they meet at a high school where there are different social groups and they have to overcome the prejudice between their 'pride' - like the popular kids and the outcasts. It could add a modern twist to their classic love story.
One idea could be creating an OC who is a lost cub from a different pride. This cub could bring new perspectives and skills to Simba's pride. For example, it might know special hunting techniques or have a unique way of communicating with the other animals in the Pride Lands.
Well, in Lion King lemons fanfiction, you could focus on the hyenas. For example, how their lives might have been different if they hadn't been so closely associated with Scar. You could also write a story about how the animals in the Pride Lands deal with a strange new plant that has some 'lemons' - like effects on their behavior. And perhaps a story about Mufasa's spirit interacting with the current Pride Lands in a rather humorous and lemons - filled way.
One idea could be exploring what would happen if Simba had a long - lost sibling. Another could be a story where Scar had a change of heart before his final battle with Simba. Maybe a fanfiction about the animals in the Pride Lands having to deal with a new, unknown threat that even Mufasa didn't foresee.