One interesting fanfiction could be where Ursula returns with a new and more devious plan. Maybe she disguises herself as a friendly sea creature at first to get close to Ariel again. She could offer Ariel a new deal that seems too good to be true, but of course, has a hidden, malicious intent.
In some fanfictions, Ursula returns and has formed an alliance with other sea villains. For example, she teams up with a group of rogue mermaids who are jealous of Ariel's popularity. Together, they plot to dethrone Ariel and take over the underwater kingdom. This often leads to intense battles and Ariel having to use her wits and newfound strength to defeat them.
A fun Ursula Little Mermaid fanfiction could involve Ursula teaming up with Ariel. Perhaps there's a greater threat to the ocean that neither of them can face alone. They put aside their differences and combine their powers - Ursula's magic and Ariel's connection to the ocean and its creatures - to defeat the common enemy.
There might be fanfictions where Ursula returns and is forced to work with Ariel to save the ocean from a greater threat. Maybe an unknown force is polluting the sea and they have to put aside their differences. This kind of story promotes positive values like cooperation and environmental awareness, and is family - friendly.
Well, in this fanfiction, Ursula could return with a new plan. She might form an alliance with some other sea villains this time. For example, she could team up with a group of merman pirates who have been causing trouble in the deep sea. And then, she uses their knowledge of the sea's hidden passages to her advantage, planning to take over Atlantica once again. Ariel, of course, has to gather her friends and find new ways to defeat Ursula and her new allies.
One interesting fanfiction could be where Ursula has a change of heart. Maybe she meets a young mermaid who shows her kindness and she starts to question her evil ways. In this story, Ursula might end up helping the mermaids instead of causing trouble.
Flounder would definitely be there. He's Ariel's loyal friend and would be by her side to help face Ursula again.
Ursula as a mermaid in fanfiction might also explore her backstory more deeply. She could have been a mermaid princess in a far - off part of the ocean. But due to a power struggle or a curse, she lost her status and became the villain we know. This could add a lot of depth to her character and make the fanfiction really engaging.
One idea could be that Ursula has a change of heart after Ariel saves her from a dangerous sea creature. Maybe Ariel gets lost in a part of the ocean Ursula controls, and Ursula decides to help her find her way back instead of taking advantage of the situation.
A really cool fanfiction could be about Morgana exploring the human world. Since she has her own dark and mysterious nature, her experiences on land would be very different from Ariel's. She might be more distrustful of humans at first but then slowly discover some good in them as she encounters various situations.
One interesting Tangled and The Little Mermaid fanfiction could be about Rapunzel and Ariel meeting. Maybe Rapunzel's long hair gets tangled in Ariel's underwater world. It could be a story of them helping each other out of difficult situations and learning about each other's very different worlds.
Prince Eric could be a main character. He would be important as he is Ariel's love interest. Also, King Triton, Ariel's father, could play a significant role as he would be concerned about Ursula's return and want to protect his daughter and the kingdom.