One interesting storyline could be Skye's struggle to communicate while being mute within the context of the team's missions. For example, she might develop a unique form of sign language that only the team members gradually learn to understand, which could add a new layer of teamwork and bonding. Another could be how she uses her hacking skills in a different way since she can't verbally interact as easily, perhaps finding ways to leave digital messages that are only decipherable by certain members of the team.
Another great storyline could be about the Agents of Shield having to deal with the aftermath of an Avengers - level battle. They might be in charge of cleaning up, helping the survivors, and trying to figure out how to prevent such destruction in the future. This could show a different side of the Agents of Shield, as they are often in the background but play a crucial role in the overall Marvel universe.
Another storyline might be a time - travel plot where the agents go back in time to prevent a major event that would have led to the downfall of the Avengers. They could encounter younger versions of the heroes and change the course of history. This would involve a lot of character development and exploring different timelines.
One interesting storyline could be a crossover where Agents of Shield agents have to team up with the Avengers to stop a powerful alien threat that neither group could handle alone. This would involve a lot of character interactions, like Coulson trying to give orders to Iron Man or Natasha Romanoff teaching some of the Shield agents her spy skills.
With Coulson, their relationship could become more paternal. Since Skye can't express herself verbally, Coulson might feel more protective and take on a more hands - on role in guiding her. For Fitz - Simmons, they might become more inventive in finding ways to communicate with her, which could strengthen their friendship as they work together on new communication devices or methods. And with May, May could see Skye in a new light, respecting her even more for her ability to persevere without the use of speech.
One possible fanfiction idea about Skye could be a 'what - if' scenario. What if Skye had joined a different organization instead of S.H.I.E.L.D.? How would her character develop differently? This could lead to a whole new set of adventures and relationships, perhaps even changing her moral compass depending on the nature of the new organization.
One idea could be that the OC has a special power related to time manipulation. This could lead to her accidentally changing events in the Agents of Shield timeline, causing chaos and new challenges for the team to face. For example, she might change something in the past that makes an enemy stronger in the present.
In some fanfiction, there could be crossovers with other Marvel properties. For instance, the Agents of Shield team could meet the X - Men. This would create a whole new set of dynamics and story possibilities. They might have to work together to stop a mutant - hating villain who is also after SHIELD secrets. Another idea could be a story where they encounter Doctor Strange and have to deal with a magical threat that they are completely unprepared for.
Perhaps a fanfiction could be about Skye's pregnancy during a time of crisis in the Agents of Shield world. The team is dealing with a major threat, and Skye has to balance her pregnancy and her duties. She could be a symbol of hope for the future, with her unborn child representing a new beginning, even as they face great danger.
The OC could be a hacker who rivals Skye in skills. At first, they compete, but then they realize they can work together to take down a big cyber - crime organization. Along the way, their relationship deepens into a romantic one. They share their hacking techniques and secrets, and their combined skills become a powerful asset for the Agents of Shield.
A fanfic storyline could focus on an alternate universe where the Agents of Shield are not a government - affiliated organization but rather a group of rebels fighting against a tyrannical regime that has taken over the world. They would have to use their skills in a different way and form new alliances.