Well, Naruto himself might still be a main character, but in a different role. Maybe he's being trained in intelligence - gathering rather than just combat.
Well, it would likely include Naruto himself as he is central to the Naruto universe. Since it's about the Hidden Hokage, he would probably be a main focus.
Obviously Naruto would be a main character. Alongside him, perhaps new characters are introduced, such as the creator of the AI in the Naruto universe. This person could be a scientist - type character who has good or bad intentions regarding the use of AI. And of course, Naruto's friends would be involved too, as they might have different opinions on the AI that is emerging in their world.
Naruto himself is usually a central and popular character. Since it's a Naruto fanfic, his journey as a hidden prodigy is often the main focus. He might be portrayed with enhanced abilities or a different understanding of his powers.
Most likely Naruto would still be one of the main characters. Since it's related to Naruto, he'd probably be at the center of the story, dealing with the implications of the hidden god. Sasuke could also be a main character, perhaps his path intersects with Naruto's in a new way due to the hidden god's influence.
Most likely Naruto would be one of the main characters as he has a lot of potential for having hidden scars given his backstory. Sasuke is also a strong candidate, with his complex past full of tragedy. And Kakashi too, considering his experiences in the past. These three characters have deep and complex pasts that can easily be explored in terms of hidden scars in a fanfiction.
Sasuke can also be involved. His intelligence in combat and his knowledge of various jutsu make him a great addition to a fanfic centered around intelligence. He and Naruto can have intellectual battles or work together to face a greater threat.
It could also be about the intelligence of the antagonists. They might be using their smarts in more devious ways than in the original Naruto story. For instance, they could be setting up elaborate traps or false alliances based on their in - depth understanding of the other characters' weaknesses.
Obviously Naruto would be one of the main characters since it's in his name. There might also be his friends like Sasuke and Sakura. Kakashi could also be an important character as he is Naruto's teacher and mentor, guiding him in understanding and using his 'hidden dragon' abilities.
Naruto is obviously one of the main characters as the title implies it's about his hidden strength. Sasuke is also likely to be a main character as he has a long - standing relationship with Naruto. Sakura might also be important as she is part of Team 7. Kakashi could be involved too, as he is their sensei and has a role in guiding Naruto to discover his hidden strength.
It could be a rogue ninja from a forgotten clan who is jealous of Naruto's new - found power from his hidden bloodline. This antagonist might try to steal Naruto's bloodline ability for himself.