You could focus on a love story in the next generation. For example, a tribute from one district falls in love with a Capitol official's child. Their relationship is complicated by the still - existent power dynamics and prejudices between the different groups.
A boy who has a special talent, like being able to communicate with animals in the arena. This ability gives him an edge in the Games, but also makes him a target. He has to decide whether to use his talent for survival or to help others.
One idea could be exploring the backstories of the minor characters in more depth. For example, the tributes from the districts that we don't see much of in the original books. Another could be a what - if scenario, like what if Katniss had a different mentor who was more ruthless or more kind - hearted. A third idea could be to focus on the post - Hunger Games lives of the victors, and how they deal with the trauma and the new - found fame or infamy in their districts.
Perhaps a story where the new generation has to revive the glee club after it has fallen into disarray. They could discover old tapes or stories from the original members which inspire them to bring back the glory days. They may also have to deal with different music trends compared to the first generation.
Another interesting concept is to focus on how the next generation is different from the original ponies. Maybe they have new magical abilities or different social structures. You could write about a young pony who struggles to fit in because of these differences, but in the end, they use their uniqueness to make a positive impact on their community.
One idea could be to have the previous victors be forced to compete again. This would add a whole new level of drama as they already thought they were safe. They could also form alliances based on their past experiences in the games.
One idea could be exploring the backstories of the tributes in more detail. For example, what led them to be in the Hunger Games in the first place.
A cool fanfiction idea could be that the world of Divergent and the Hunger Games are actually two parts of a bigger experiment. The main characters from both universes start to discover this connection during a Hunger Games where some strange, Divergent - like abilities start to show up among the tributes, and they have to figure out what's really going on.
In 'rwby hunger games fanfiction', a great idea is the exploration of character backstories. Maybe we get to see more about the characters' pasts and how it affects their decisions in the Hunger Games. Some fanfictions might also focus on the fashion aspect. RWBY has a very distinct style, and seeing how that translates into Hunger Games outfits would be cool. And of course, the use of semblances in the arena can create some really exciting scenarios.
The character development could also be interesting. A character who initially didn't care about sakura might come to appreciate its significance as the story progresses. This could be due to a memory triggered by the sight of sakura in the arena, leading to a change in their motivation and actions.
Well, a cool Hunger Games Naruto fanfiction could involve the ninjas having to use their unique abilities in the Hunger Games setting. Naruto's rasengan could be a powerful weapon against other tributes. Hinata might use her byakugan to detect hidden threats and traps in the arena. Also, the kekkei genkai of different clans could play a big role. For instance, the Sharingan could be used to predict opponents' moves, just like in the Naruto world but in the context of the Hunger Games.