One idea could be focusing on the children of Naruto and Hinata. Maybe their son has to deal with a new and powerful enemy that is targeting the Uzumaki clan. He could discover some long - lost jutsu that his father didn't know about and use it to defeat the foe.
Another plot could revolve around the next generation of the Akatsuki. The new Akatsuki members are trying to create chaos in the ninja world again. The children of the original Naruto characters have to team up to stop them. They face various challenges and have to learn to work together despite their different personalities.
Maybe an OC who is from a foreign land outside of the main ninja villages. They come to the Hidden Leaf Village with a different set of skills and a different view on the ninja way. Their interactions with the established Next Gen characters, like Boruto and his friends, could create some really interesting storylines. For example, they might introduce new jutsu or training methods that are unheard of in the village.
In a naruto next gen fanfic, you might consider having the new generation face a threat that is completely different from what the previous generation dealt with. It could be a new type of enemy that uses a form of jutsu that no one has ever seen before. This would force the young ninjas to think outside the box and develop new strategies. You could also explore their personal growth, like how a character who was initially shy and insecure becomes a strong and confident ninja through their experiences.
A really interesting concept would be to delve into the backstories of the new generation. What if some of them had secrets about their heritage that even they didn't know? Maybe one of them is related to a powerful but long - gone wizard from the past. This could add a whole new layer of mystery and drama to the fanfiction, as they uncover their true identities while also dealing with the typical Fairy Tail chaos.
One idea could be focusing on the adventures of the next generation at Hogwarts. Maybe they discover a hidden chamber that has been long forgotten, filled with ancient spells and magical artifacts. Another could be a story about the new generation dealing with a new dark wizard threat, but this time they have to use their unique modern - day knowledge combined with magic to defeat it.
Perhaps they travel back in time to meet their parents or the original Fairy Tail members when they were young. This could lead to some really heartwarming or comical moments. They could learn new magic techniques from the past members and bring those skills back to their own time to use against a new threat.
Some ideas in 'pokemon next gen fanfic' could be related to the evolution of existing Pokemon into completely new forms that are more powerful and have different appearances. There could be a focus on environmental issues in the Pokemon world, like certain Pokemon being endangered due to pollution or habitat destruction. Also, new items that can enhance Pokemon abilities in different ways, for example, an item that allows a Pokemon to temporarily change its type.
A cool plot might be an OC who is secretly from a long - lost clan that has a connection to an ancient and powerful chakra source. The OC discovers their heritage gradually and has to face off against an enemy who also wants to control this chakra source. Along the way, they make new friends and allies among the next - generation Naruto characters.
One idea could be a story where the main Pokemon character has lost its memory and wakes up in a strange part of the Mystery Dungeon. As it tries to figure out who it is, it meets other Pokemon who become its friends and help it on its journey of self - discovery.
Boruto Uzumaki is very popular. He is Naruto's son and has his own unique set of skills and challenges. His relationship with his father and his journey to become a great ninja are often explored in fanfiction.
Another interesting plot could be about a rift within the next - generation ninja community. Some might believe in following the old ways strictly, while others want to modernize ninja techniques. This conflict could lead to internal battles and eventually a realization that a balance between the old and new is necessary for the future of the ninja world.