Another type of new character could be a mysterious figure who appears in Naruto's future vision. This character might have powers that are beyond comprehension at first. They could be a key to unlocking a new form of chakra or a secret about the origin of the ninja world. Their motives would be unclear at first, adding an element of mystery to the fanfiction.
There could be their children's friends. Maybe a young ninja from a far - off village who comes to study in the Hidden Leaf. His unique abilities and different cultural background could bring new elements to the story.
Perhaps a mysterious mentor figure appears. This person has seen the rise and fall of many kingdoms and has come to guide Ruby in her fight against the darkness.
There could be a new tech - savvy kid who idolizes Hiro and wants to join the team. This character might bring in fresh ideas and a different perspective on using technology for good.
It's hard to say for sure. But perhaps there could be ninjas from a far - off land that we haven't known about before.
There could be a young prodigy from a small, unknown village who has a natural affinity for the Jinton release. This character could come to the Hidden Leaf Village to learn more about controlling it and end up befriending Naruto and his friends.
One potential new character could be a sage who was there during Kaguya's time and has been in hiding ever since. This sage could have knowledge about the true nature of Kaguya's powers and how Naruto can control and use them properly. He might also be a bit of a trickster, making Naruto go through various trials to prove himself worthy of this knowledge.
Another potential new character could be a fellow lost soul. This character could be from another village or even another dimension. Together with Naruto, they could try to find a way out of the darkness while sharing their different experiences and knowledge.
There could be a mysterious mentor figure who guides Naruto in his secret life. This person might have unique abilities and a deep understanding of the ninja world's secrets. Another potential new character could be a spy from another village who discovers Naruto's secret life and tries to use it to their advantage.
Well, in this fanfiction, we might see some new characters related to the Nine - Tails' origin. Maybe there are other tailed beasts' hosts from a long - lost clan who come to offer their knowledge on handling such a situation. Additionally, there could be a hermit who has been observing Naruto from afar and now steps in to guide him through the difficulties of having a broken seal. And don't forget about the potential dark side characters, like a sorcerer who wants to use Naruto's broken seal to open a portal to a dark dimension.
There could be new ninja from other hidden villages that are introduced when Naruto returns. Maybe a powerful young ninja who wants to test his skills against Naruto. Or perhaps a mysterious sage - like figure who has some connection to Naruto's new power.