One plot idea could be exploring how Elsa deals with the physical and emotional changes during pregnancy while still having to manage her ice powers. Maybe she has to learn to control her powers more carefully so as not to accidentally harm herself or the baby. Another could be about how the people of Arendelle react to the news. Some might be overjoyed, while others could be worried about the implications of a child with ice powers.
Perhaps the story could focus on Elsa preparing for the future of her child. She might start building a special place for the baby, using her ice powers in creative ways. And as the due date approaches, she could face challenges like an antagonist who wants to use the baby's potential powers for their own evil purposes, leading to a battle where Elsa has to protect not only herself but also her unborn child.
One plot idea could be Elsa's journey in dealing with her newfound state while still having to rule Arendelle. She might struggle with how to balance her duties and her pregnancy. Another could be the reactions of the people in Arendelle, some might be overjoyed and see it as a new beginning, while others could be worried about the implications for the kingdom. Also, we could explore how Elsa's powers interact with her pregnancy, like whether her emotions during this time affect her magic in unexpected ways.
A plot could involve Elsa's ice powers acting up during her pregnancy. Hiccup, being from a more technological and dragon - friendly world, tries to find ways to help her control it. They might seek the help of Toothless and other magical creatures in their world. Maybe they face opposition from some of their people who are not happy about their union, especially with a baby on the way. But they stand strong together and prove that love can bridge any gap.
A possible plot is that Elsa's kingdom is threatened by a force that is related to the same kind of threats the Avengers face. The Avengers hear about her and her powers and travel to her world to offer their help. Along the way, they learn about her backstory, and she learns about their heroics. Together, they combine their powers to save her kingdom and in the process, Elsa decides to join the Avengers on some of their adventures in their own universe.
Another interesting plot could be that the reader is a time - traveler from the future. They come to Arendelle during Elsa's reign and know about all the events that are going to happen. The reader tries to help Elsa avoid some of the hardships she will face in the future, but in doing so, they accidentally change the course of history. This creates a complex situation where Elsa and the reader have to work together to set things right while also dealing with their growing feelings for each other.
One idea could be that a powerful dark sorcerer kidnaps Elsa because he wants to use her ice powers for his own evil deeds. He locks her in a magically sealed dungeon deep in an ancient castle. Another plot could involve a group of thieves who mistake Elsa for a valuable princess they can ransom. They take her to a hidden lair in the mountains. A third option is that a jealous rival from another kingdom, who envies Elsa's powers and her popularity, arranges the kidnapping to discredit her.
One idea could be that Elsa discovers she has vampire powers after being bitten in a hidden part of the frozen forest. Another could be a love story where a vampire falls for Elsa and tries to convince her to embrace the dark side while she struggles with her own ice powers and the implications of becoming a vampire. Or perhaps Elsa is turned into a vampire and has to learn to control her new thirst while still ruling Arendelle.
A plot idea might be that there is a strange blizzard that is not caused by Elsa. Kristoff, suspecting foul play, comes to Elsa for help. Together, they discover a dark sorcerer is behind it. As they battle the sorcerer, Kristoff helps Elsa see that she doesn't have to be afraid of her powers and can use them more freely. This could lead to a deeper friendship or more between them.
One idea could be that Dark Elsa accidentally freezes Anna's heart again, but this time it's a different kind of ice that can only be thawed with a magical item hidden in a far - off land. So, Anna has to embark on a dangerous journey while Dark Elsa struggles with her guilt.
Well, perhaps there could be a fanfiction where Hiccup and Elsa are both summoned by a powerful wizard to help with a prophecy. They don't trust each other at first, but as they face the challenges set by the wizard, which include tasks that require both fire (from Hiccup's dragon) and ice (Elsa's power), they start to respect and care for each other.
Well, a possible plot is that Elsa's pregnancy is a result of some magical encounter. As she progresses through the pregnancy, she starts to notice that her unborn child has an affinity for ice magic even before birth. She then decides to create a special, safe place made of ice for the baby to be born in. And also, she could have dreams about the future of her child, which guide her in making decisions for Arendelle's future as well.