One idea could be that Beastboy has to rely on his friends more than ever. Since he's stuck, they have to figure out how to communicate with him in his animal forms. For example, in the form of a small bird, he could lead them to hidden places or clues by flying ahead. Another plot could involve him learning new skills while in animal form that he can't in his human form, like how a squirrel can store and find food efficiently. This could help the team in some way, like during a food shortage in their base.
Maybe there's a magical curse that keeps him in animal form. His friends could go on a quest to find the source of the curse and break it. Along the way, Beastboy in his various animal forms could be both a help and a hindrance. For instance, as a large bear, he could protect them from danger, but also accidentally scare off some potential allies who don't understand his situation. And in the form of a snake, he could slither into small spaces to gather information.
A plot could be that Beastboy is stuck in animal form and the team initially thinks it's a problem, but then they realize it's an opportunity. They start using his animal abilities for different tasks. He could be a fast cheetah to deliver urgent messages, or a strong ox to help with heavy lifting. But at the same time, Beastboy has to deal with the loss of his human identity and the fear that he might never change back. His friends then have to help him keep his humanity while in animal form.
His friends could start to see different sides of him. For example, when he's a cat, they might notice his more curious and independent nature. This could make them realize that there are parts of Beastboy they didn't fully understand before. And Beastboy himself could develop more patience as he has to adapt to being in animal form. He can't just do things the way he used to as a human.
One plot idea could be that Raven and Beastboy are paired for a school project. As they work together, they start to understand each other on a deeper level. Raven discovers Beastboy's insecurities beneath his fun - loving exterior, and Beastboy realizes Raven's not as cold as she seems. This new understanding could lead to a budding friendship that might turn into something more.
One idea could be that Ben has to adapt to the daily life of the alien he's stuck as. For example, if he's stuck as a Four Arms, he has to deal with constantly breaking things because of his size and strength. Another could be that he has to find a way to communicate with his friends and family in his alien form, which might be difficult if the alien has a different language or way of expressing itself.
Well, you could write a fanfic where the animals find a way to communicate with humans in a more equal way. Maybe they form a sort of alliance for mutual benefit. Or how about a plot where the pigs' leadership is challenged not by other animals on the farm, but by some mysterious force that makes the other animals question their authority more deeply? Also, a story where the animals start to remember their pre - revolution lives more vividly and it causes a split in the animal community could be really interesting.
One idea could be that Raven and Beast Boy discover their baby has some unique powers inherited from both of them. Maybe the baby can shift into small, cute animal forms like Beast Boy, but also has Raven's ability to sense emotions on a deeper level. And they have to figure out how to raise the baby while also protecting it from villains who might want to use its powers.
One idea could be that Harry has to figure out how to communicate with his friends while in owl form. He could use his beak to write in the dirt or something similar. Another plot could involve Harry trying to find a way to reverse the situation while also using his new owl abilities to his advantage, like flying to places he couldn't reach before.
One idea could be a story where Beastboy and Nightwing have to team up for a mission in a new, mysterious part of the city. They start off not getting along well due to their different personalities and fighting styles. Beastboy is more carefree and impulsive while Nightwing is methodical. But as the mission progresses, they learn to appreciate each other's strengths and form a strong bond by the end.
One idea could be that Whitney discovers a rare lemon tree in Animal Crossing. She decides to take care of it and it becomes a community attraction. The villagers gather around it, and it brings a new sense of unity to the village.
One idea could be a story about a new villager who arrives in the town and has a special ability to communicate with the local wildlife on a deeper level. They use this ability to solve a mystery about why some of the fish are disappearing from the rivers. Another could be a fanfic centered around a villager's journey to build the most elaborate and unique house in the village, facing challenges like lack of resources and zoning regulations.
A possible plot could be that Naruto is sent on a mission to a far - off land where animal girls live. These animal girls have their own unique culture and abilities. Naruto has to learn to adapt to their ways while also protecting them from outside threats. He might encounter a wolf - girl who is the leader of the group. She challenges Naruto at first, but as they face difficulties together, she realizes his worth and a romantic relationship starts to develop among all of them.