It's hard to say exactly how the Capitol would react. They are a complex and often cruel entity. They could see the fanfiction as a form of rebellion, even if it's just a creative exploration. They might start to investigate the authors of the fanfiction to see if they are part of any real - life resistance groups. Or they could simply laugh it off as the silly musings of the oppressed districts, not realizing that these stories could potentially have a greater impact on public perception than they think.
Some characters might be shocked. For example, Katniss might find it strange to see alternate versions of her story. She could be angry if the fanfiction misrepresents her motives or actions. Peeta, on the other hand, might be more intrigued and try to understand the different perspectives presented in the fanfiction.
Well, it could be quite interesting. Maybe they would be amused by the creative interpretations of their world. Or they might get angry if the fanfiction portrays them in a negative light that goes against their carefully crafted image in the official story.
It could be some of the Capitol citizens who were minor characters in the original Hunger Games. For instance, Effie Trinket could be a main character, and we might see her life in the Capitol outside of her role as a escort for the tributes. There could also be new characters created specifically for the fanfiction, like a young Capitolite who starts to question the Hunger Games.
One interesting aspect could be the exploration of different characters' backstories. For example, we might get to see more about the Capitol citizens and their lives, which are not fully explored in the original series. It could also show new relationships between characters, like friendships or rivalries that were only hinted at before.
One interesting Capitol Hunger Games fanfiction could be about a Capitol citizen who secretly sympathizes with the tributes and tries to help them. They might use their position and knowledge of the Capitol's inner workings to smuggle in supplies or pass on crucial information.
First, think about the characters. You could create a new character from the Capitol, like a gamemaker in training. Decide on their personality, motives, and backstory. For example, they might be a gamemaker who wants to make the games more fair, which goes against the Capitol's norm.
Her friends would likely be very protective. Finnick, for example, would probably be extremely vigilant, using all his charm and skills to keep her safe. He might also be a source of emotional support, having been through so much himself in the Hunger Games. Katniss and Peeta could offer practical help, like finding a safe place for Annie to stay during her pregnancy, as they understand the importance of protecting the vulnerable in their world.
Their friends from District 12 would likely be overjoyed. The people there have seen so much hardship, and a new baby would be seen as a sign of hope. They would bring gifts, like hand - made baby clothes or food. Finnick, if he were still alive in the fanfiction, would be very supportive. He would offer his wisdom and share some of his own experiences if he had any related to parenting. He'd also be there to protect them from any Capitol interference.
The Capitol citizens would likely be entertained. They live in a world of excess and novelty, so reading fanfiction about the Hunger Games characters would be just another form of amusement for them. However, the tributes from the districts might have a more complex reaction. For those from the poorer districts, it could be a source of hope or a cruel reminder of their situation, depending on how the fanfiction is written. For example, if a fanfic shows a district winning in a way that seems impossible in reality, it could give them hope, but if it's a cruel or inaccurate portrayal, it could be disheartening.
It's hard to say without reading the fanfic specifically, but it could be characters who are part of the Capitol elite. Maybe a game - maker who has a different view on the Hunger Games than others in the Capitol.