Well, in such a fanfiction, there could be a lot of conflict. Maybe Loki's son has some sort of hidden power that the Avengers initially fear. But then they might realize he's not as bad as they thought and try to help him control his powers. Or perhaps Loki's son is on a mission to prove himself and the Avengers see him as a threat at first.
Obviously, the Avengers would be the main characters. That includes Iron Man, Captain America, Thor, Hulk and others. And of course, Loki's son. He would be a central figure as well, with his own motives and backstory that would drive the plot.
The idea of the Avengers meeting Loki's wife in fanfiction is exciting. It could start with a tense encounter. The Avengers, being suspicious of Loki's motives, would be on guard around his wife as well. But if she is an intelligent and diplomatic character, she could break the ice. She might share stories about Loki's past that the Avengers didn't know, like how he was once a hero in his own realm before being corrupted. This could humanize Loki in the eyes of the Avengers and lead to a new alliance or at least a truce between them.
Future Loki might interact with the Avengers in a cautious way. He knows their past opinions of him and tries to prove himself. He could start by sharing small bits of useful information. For example, he might tell Iron Man about a weakness in a new enemy's technology.
Loki's character development can also involve him learning about the value of teamwork and friendship. As he interacts with the Avengers more, he starts to see the benefits of working together rather than against them. He might share his knowledge of magic and Asgardian lore with the team, which in turn helps them in their battles. This exchange also helps him grow as a character and become more integrated into the group.
Well, in a fanfiction scenario, Loki might initially try to deceive the Avengers again. But Sylvie could be the wild card. She might be more aggressive towards them, seeing them as just another group in the way of her goals. Maybe Thor would be super confused seeing Loki with Sylvie. And Iron Man would surely come up with some sarcastic remarks about this new duo.
Well, if the Avengers meet Lady Loki in fanfiction, it could lead to some really interesting character dynamics. Lady Loki, being the mischievous character she is, would likely stir things up. She could play mind games with the Avengers, especially with those who are more trusting like Captain America. On the other hand, characters like Iron Man might be more suspicious of her from the start. And Thor, having a connection to Loki, would have a very complex reaction to Lady Loki's presence.
Well, perhaps the Avengers initially suspect Loki's daughter of some mischief like her father. But as they get to know her, they find out she's actually trying to make amends for Loki's wrongdoings. She could have some unique powers that both intrigue and worry the Avengers.
Some of the Avengers, like Thor, might have a more complex reaction. Since he is Loki's brother, he may feel a sense of responsibility towards the children. Others like Captain America would be cautious but fair, trying to assess if they are a threat. Iron Man, on the other hand, would probably be sarcastic and make some snarky remarks while sizing them up.
One possible plot could be that the Avengers initially see Loki's children as threats. They might prepare for battle, but then discover that the children are not as evil as they expected. For example, they could be in search of a new home away from Asgard's politics and the Avengers end up helping them.