What are some interesting plot ideas for 'The Little Mermaid 2: Return to the Sea' fanfiction?

The main plot is about Ariel and Eric's daughter, Melody. Melody is curious about the sea world but Ariel is hesitant to let her explore due to past experiences. Ursula's sister, Morgana, tries to use Melody to get the trident. Melody gets turned into a mermaid and has to face various challenges in the sea to save the day and return to her family.

One idea could be exploring Ariel's life after she becomes human. Maybe she has trouble adjusting to some of the more mundane aspects of human life, like cooking or doing laundry. Another could be a story where Ursula's sister comes to seek revenge, but Ariel has to convince her that not all humans are bad.

One idea could be exploring the relationship between Melody and a new mermaid friend from a different part of the ocean. They could go on adventures together and discover hidden treasures.

Another plot could be about the mermaid learning more about the human world in a different way. Instead of just falling in love with the prince, she discovers a hidden talent among humans like music or art and tries to bring it back to the underwater world. This could create a whole new set of adventures and challenges for her. For example, she might have to find a way to communicate with a human artist without revealing her true identity at first.

One idea could be exploring what would happen if Ariel had a secret power she didn't know about until after she became human. For example, she could have the ability to communicate with all sea creatures, not just the ones she already knew. This would create new challenges and relationships on land.

The main plot is about Ariel and Prince Eric's daughter, Melody. She is drawn to the sea despite her parents' warnings. She discovers her mermaid heritage and has to face the evil Morgana. In the end, she helps save the day and is reunited with her family.

One idea could be that Sessinu discovers a hidden underwater kingdom that is even more mysterious than Ariel's world. Maybe it has different types of mermaids with unique powers.

One idea could be the mermaid's transformation into a human having unexpected side effects on her ability to communicate with sea creatures. Since she's now part of the human world, she might find that her once - effortless connection with the underwater beings is fading, leading to a sense of isolation and a longing for her former life.

One idea could be exploring what would happen if Ariel had a mermaid friend from a different sea kingdom who was more adventurous than her. This friend could convince Ariel to explore uncharted waters and they could discover a hidden underwater civilization. Another idea is to have Ariel meet a magical sea creature that gives her the ability to temporarily transform into a human on land without having to make a deal with Ursula. It could lead to all sorts of new and different adventures for her.

One idea could be that Melody discovers a hidden underwater kingdom that was lost long ago. She could be on a quest to find a magical item there that can help protect the mermaid world from a new threat.