A lot of fanfictions focus on the idea of Castiel being different from other angels because of his connection to the Winchesters. There are themes of forbidden love, like a romantic relationship between Castiel and an archangel which goes against the angelic rules. Also, the exploration of Castiel's true purpose and how it relates to the archangels' plans is a big theme.
One popular theme is Castiel's relationship with other characters, such as his loyalty to Dean and Sam. Another is his struggle with his angelic nature and his growing understanding of humanity.
One popular plot twist could be Castiel secretly being an archangel all along but having his memories wiped. It adds a whole new layer of mystery to his character. Another could be that he is an archangel in a parallel universe and gets switched with the Castiel in the main universe. This can lead to some really interesting character interactions.
One popular theme is the sister's relationship with her archangel brothers. It could be about her trying to fit into their world or dealing with their overprotectiveness. Another theme is her own powers and how she discovers and controls them in the context of the Supernatural universe.
There are fanfictions with the theme of alternate universes. In these stories, Dean and Castiel experience different versions of their relationship. For example, in one universe they might be rulers of a supernatural kingdom, and in another they could be ordinary humans. These themes add a lot of variety and intrigue to the fanfictions.
Redemption is also a common theme. Given his complex backstory in the show, fanfictions often delve into Gabriel's journey towards redemption. This could involve him making amends for past actions or finding a way to atone for his mistakes. Writers might explore his relationships with other characters like Castiel or the Winchesters in the context of this redemption arc. It can be really interesting to see how different authors interpret his path to redemption.
One popular theme is the forbidden love aspect. Since archangels are often depicted as powerful and otherworldly beings, a relationship with a human soulmate can be seen as forbidden. Another theme is the idea of the soulmate bond being able to overcome great obstacles, like the battles and power struggles in the Supernatural universe.
Definitely. The 'Castiel is an archangel' fanfics are popular among Supernatural fans. They usually offer unique interpretations of the story. For example, they might show how Castiel's new status as an archangel affects his friendship with Dean and Sam. They can also introduce new plotlines and conflicts based on his enhanced abilities.
Another popular theme is the power struggle between them. Meg is a powerful demon and Castiel is an angel with his own set of powers. Fanfictions sometimes focus on how they use their powers against each other, or in some cases, how they learn to combine their powers for a common goal, which makes for some really exciting action - packed stories.
One common theme is the origin story of the 5th Archangel. Writers often explore how this archangel came to be in the Supernatural universe. Another theme is its relationship with the other well - known archangels like Michael and Lucifer.
In the fanfiction world, Castiel being an archangel would bring a whole new dynamic to his relationship with Dean. Dean has always been a bit of a protector of Castiel in a way, but with Castiel as an archangel, the power balance shifts. Castiel might become more distant as he has to deal with archangel business, which could make Dean feel left out. On the other hand, they could also have a deeper understanding of each other. Dean could learn to respect Castiel's new role and Castiel could show Dean that even as an archangel, he still values their friendship and partnership.