A plot twist could be that the daughter of hell has a twin sister who is the complete opposite of her. While she is trying to find her place between good and evil, her sister is causing chaos. And it turns out that their fates are intertwined. Another might be that she loses her hellish powers but gains a new, unexpected power that is related to something in the human world, like the power of human love or hope, which then sets her on a new path that no one, including herself, could have predicted.
One common plot twist is that Dean's daughter might turn out to have some special powers. For example, she could be able to communicate with the dead in a way that even Dean doesn't fully understand. Another twist could be that she is actually related to a powerful supernatural being in a way that was hidden from Dean for a long time. Maybe she's part angel or demon in some way.
One common plot twist could be that Caroline discovers she has a hidden power related to the Supernatural world. Maybe she can communicate with spirits in a unique way that no one expected. Another could be that her sister, who she thought was normal, is actually part of a secret Supernatural society. This revelation would turn their relationship upside down and lead to a whole new set of adventures and challenges.
One common plot twist could be that the curse is related to a powerful supernatural entity that wants to use Sam's unborn child for some dark purpose. Maybe it's a demon who plans to possess the baby as soon as it's born. Another could be that the pregnancy is a false one, created by the curse to deceive Sam and his friends into believing he's carrying a child, when in fact it's a trap to lure them into a dangerous situation. For example, it could be a spell by a witch to get revenge on Sam for something he did in the past.
One common plot twist is that she discovers she has some latent supernatural powers after all, despite being human. This could be due to some long - forgotten magic in the Mikaelson bloodline. For example, she might suddenly be able to see the future or communicate with spirits, which completely changes her role in the story and how others perceive her.
Well, a big theme is identity. She is a princess of Hell, but she may question who she really is and what she wants to be. There's often a theme of isolation too. Being in such a powerful and often feared position, she may feel alone. And then there's the theme of family. In Hell, family can be a very complex thing. She might have to deal with her demonic family members and their expectations. For example, in some fanfictions, she has to prove herself worthy to her father, the King of Hell. There are also themes related to the exploration of Hell itself, like the different levels and what they represent in relation to her character.
Maybe Dani is not really Danny's clone in the way they thought. There could be some other mysterious force or entity that had a hand in her creation, and as they dig deeper into her origin, they find out that she has a much greater destiny than just being Danny's 'daughter' in a sense. This would completely change the dynamic of their relationship and the direction of the story.
A really unique plot twist is when the angels from Supernatural get involved in the Twilight world. They have their own agenda, which might not align with the goals of either the vampires or the werewolves in Twilight. This creates a complex web of alliances and betrayals that is really exciting to read about. It also changes the power dynamics in the Forks area as these all - powerful angels start meddling.
One common theme is the struggle between the god - like powers she might have and her humanity. Since she's the daughter of a god in the 'Supernatural' universe, she often has to deal with powers that are difficult to control while trying to fit in with the human world or the world of hunters like Sam and Dean.
One common plot twist could be that the reincarnated character has some unique power that interacts with Saitama's strength in an unexpected way. For example, they might have a power that can nullify Saitama's punches for a short time, creating a tense situation where Saitama has to figure out a new way to fight. Another plot twist could be that the character discovers a secret about Saitama's past that even Saitama himself doesn't know. This could lead to a whole new arc in the story, as they try to help Saitama come to terms with this new information. A third plot twist might be that the reincarnated character is actually from a parallel universe where Saitama is a villain, and they have to figure out how to deal with this different version of Saitama.
Well, sometimes in princess kidnapped fanfiction, a plot twist is that the princess was kidnapped as part of a political scheme by her own family members. They might be trying to gain power or start a war. Also, the princess could find out that she has a long - lost twin during the kidnapping ordeal. And then there's the twist where the place she's being held is actually a portal to another world, and she has to figure out how to get back home from there.