Character development is also a big theme. Fans might write about how a character from one universe would change or grow if they were exposed to the other universe. For instance, how Tony Stark would interact with Sherlock and how that might influence his own character arc.
Alternate universes are quite common too. Writers might create a scenario where the Avengers exist in Sherlock's Victorian London or vice versa. This allows for a lot of creative exploration, like how the Avengers' superpowers would be perceived in a different time period and how Sherlock would deal with such extraordinary individuals.
One popular theme is alternate universes. Writers like to explore what would happen if certain events in the MCU went differently, like if Iron Man didn't build the first Iron Man suit. It gives a whole new perspective on the characters.
A common theme is She - Hulk's struggle to balance her normal life as Jennifer Walters and her superhero identity. For example, in many fanfictions, she has to deal with legal cases during the day and then rush off to save the world at night.
One popular theme could be the relationships between the Avengers characters, like exploring the deep friendship between Steve Rogers and Bucky Barnes in a more emotional and complex way. Another might be the power dynamics, such as how Thor's god - like powers affect his interactions with the other, less - powerful Avengers. Also, the concept of redemption through teamwork can be a theme, where a character who has made mistakes finds a new purpose within the Avengers group.
The theme of the Avengers becoming a family during a pregnancy is also popular. They all come together to support the pregnant character, whether it's helping with doctor's appointments or just being there for emotional support. It shows a different, more domestic side of the superhero team.
Well, the Avengers are a diverse group. Hawkeye might just shrug it off as something he doesn't really care about. But Iron Man would likely be drawn to the technological aspects that might be added in some fanfictions. Captain America would be more interested in the moral and ethical elements that could be explored in the stories. Black Widow would be observant, noticing the different characterizations and how they deviate from the original Sherlock Holmes. And Thor would probably be the most out - of - place, trying to make sense of this strange new form of storytelling.
Sherlock would likely observe the Avengers closely. He'd be intrigued by their powers and abilities. For instance, he'd be very interested in the Hulk's transformation and how it affects Bruce Banner's psyche. He might try to find a way to control the transformation through his deductive reasoning.
In the fanfiction, Sherlock could be investigating a series of disappearances that are somehow related to the Avengers. Maybe the disappearances are part of a plan by a new villain who wants to use the Avengers' powers for his own evil purposes. Sherlock would use his powers of observation to find clues that the Avengers missed. He could also get into some interesting debates with Captain America about justice and the law, as Sherlock has his own unique view on these matters. The story could end with them working together to rescue the captives and defeat the villain.
One popular theme is the exploration of Sherlock's complex personality. Writers often delve into his brilliant mind and his struggles with emotions. Another theme is the relationship between Sherlock and Watson, whether it's a deep friendship or something more. Also, mystery-solving adventures that expand on the cases in the original series are quite common.
One popular theme could be the slow - burn aspect. It might start with a gradual realization of their feelings for each other. For example, they could be working on a case together and there are these little moments of tension and connection. Another theme could be the 'forbidden love' idea. Since they are partners in solving crimes, a relationship might be seen as unprofessional or risky in their world. Also, a theme of self - discovery through the relationship. As they kiss and enter into a more romantic relationship, they learn more about themselves and how they function in a relationship compared to just a working partnership.
One popular theme is the exploration of the relationships between the Avengers in more depth. For example, how Tony Stark and Steve Rogers' relationship developed or deteriorated during the events of Age of Ultron. Another theme is the idea of alternate endings. Fans often write about how things could have gone differently if certain events in the movie had changed.