The Ice Princess could start a school for ice magic in Ooo. She realizes that there are many young creatures who have ice - related powers but don't know how to control them. Along the way, she has to deal with a rival who wants to take over the school. Another idea is that she goes into a deep sleep like Sleeping Beauty, and Finn and Jake have to find a way to wake her up. This could involve a quest to find a special flower that only blooms in the coldest parts of Ooo. And she might also have a vision of a future disaster in Ooo and try to prevent it.
One interesting plot idea could be the Ice Princess trying to make friends with the other princesses in Ooo. Maybe she's tired of being seen as just the cold and distant one. Another could be her going on a journey to find a way to control her ice powers better, like seeking a magical item or a wise old wizard. And she could also team up with Finn and Jake to save Ooo from a new threat that only her ice powers can defeat.
Well, a great plot might involve the Ice Princess falling in love. Not with the obvious choices, but perhaps with a new character, a fire - based being. It would create a really interesting dynamic as they try to overcome their elemental differences. Or she could get kidnapped by an evil force that wants to use her ice powers for their own nefarious purposes. Finn and Jake would then have to rescue her. Also, she could discover a long - lost family member who is also an ice - being and they go on adventures together.
One idea could be that the Ice Princess decides to explore the human world for the first time. She might encounter strange things like cars and skyscrapers and have to figure out how to adapt. Another could be a story where she teams up with Finn and Jake to save the Ice Kingdom from a new, mysterious threat that is melting all the ice. Maybe she also discovers a long - lost power within herself during this adventure.
A possible plot for an Adventure Time Ice Prince fanfiction might be that the Ice Prince decides to explore the warmer parts of Ooo. He's never been there before and is curious. But once he gets there, he realizes he can't control his ice powers well in the heat. He accidentally freezes some important things and has to make amends. Finn and Jake get involved to help him learn to control his powers in this new environment. It could also be a story about him learning about different cultures in the warmer regions.
One idea could be that the Water Princess discovers a hidden underwater kingdom that has a connection to the Land of Ooo. She has to team up with Finn and Jake to protect it from an evil sea creature.
A really interesting plot could be set in an alternate dimension where Ice King is a normal king and Marceline is a human. They meet in this new world and have to figure out how to get back to their own world while also dealing with the new relationships and challenges this world presents. They might discover that their bond is stronger than they thought, even in these different forms.
Well, they could start by having a bit of a misunderstanding. Finn might accidentally break a water - related tradition in the Water Princess's kingdom. This causes some tension between them at first. But then, they discover a common enemy that is threatening both the Land of Ooo and the Water Kingdom. So they have to put aside their differences and team up. They could go on a journey through different elemental regions, like a fire region where they have to use the Water Princess's powers cleverly to survive.
One idea could be that the Water Princess discovers a hidden underwater kingdom that was once part of her domain but has been lost. Another could be her facing a drought in the Land of Ooo and having to use her powers in new and creative ways to bring water back. Maybe she has to team up with Finn and Jake to fight an enemy that is polluting the water sources.
One idea could be Shoko discovers a new, hidden realm in the Land of Ooo. She teams up with Finn and Jake to explore it and uncovers ancient secrets that could change the whole world of Adventure Time.
Well, a plot could revolve around the return of some old foes in a new form in the future. For instance, the Lich could come back as a more insidious threat that infects the minds of the future inhabitants of Ooo. Also, we could explore the idea of Finn's sword having new powers or a different significance in the future. Maybe it's the key to unlocking a long - forgotten dimension that holds the secrets to saving Ooo from a new impending doom.
One idea could be a new student arriving at Adventure Time Academy who has a mysterious power that no one has seen before. This new character could disrupt the existing social dynamics among Finn, Jake, and their friends.
Maybe Marceline the Vampire Queen teams up with a Dark - type Pokémon in a fanfiction. Since she has a somewhat dark and mysterious personality, it would be interesting to see how she interacts with a Pokémon that shares those traits. For example, she could form a bond with a Umbreon and they could go on adventures together.