It would be a wild departure from the original story. Naruto's character would likely have a much more serious and calculating side, influenced by Itachi. His goals might be more in line with Itachi's own motives in the original series.
Well, in such a fanfiction, Naruto would probably have a very different upbringing. He might be trained in the ways of the Uchiha from a young age. His relationship with Sasuke would be extremely complex. Instead of being rivals, they could be more like family. Naruto would also have to deal with the burden of Itachi's past actions, and perhaps even try to redeem the Uchiha name in a different way. He may also have access to Itachi's unique jutsu and knowledge much earlier in life, which would change how he approaches battles and his overall ninja skills.
A fanfiction where Naruto is Itachi's son could be full of twists and turns. Naruto's identity would be a huge shock to many characters. He would grow up with a different set of values, perhaps more focused on protecting the village in a more secretive and strategic way like Itachi. His relationships with the Akatsuki members would be very different as well. He might have an inside understanding of their motives. His journey as a ninja would be redefined, and he could be seen as a bridge between the Uchiha and the rest of the village, trying to heal the old wounds and prevent future conflicts. This new Naruto would have to navigate a world that views him differently because of his newfound heritage.
In this fanfiction concept, Naruto's powers would be a blend of his own and what he could inherit from Itachi. Since Itachi was a very powerful ninja, Naruto might have an innate ability for genjutsu, which was one of Itachi's strong suits. His chakra control could be improved due to his Uchiha blood. And with the Sharingan, he might be able to use Susanoo in the future, although it would probably be a different form compared to Itachi's, as Naruto also has the Nine - Tails' chakra. This combination of powers would make him an extremely formidable ninja.
The son might have a combination of Naruto's immense chakra reserves and Itachi's powerful Sharingan abilities. He could have the ability to use Rasengan with the precision and strategic thinking that comes from the Sharingan. Also, he might inherit Naruto's ability to learn new jutsu quickly and Itachi's calm and collected nature in battle.
I'm not entirely sure if there is a specific well - known fanfiction with that exact premise. But considering how fanfiction works, someone may have written a story like this. It could explore some really complex emotions and new storylines. Imagine Naruto growing up with Itachi's teachings and how that would shape his view of the ninja world, and also how the other characters would react to this new relationship. It would be a very different Naruto story for sure.
In such a fanfiction, there would be a huge clash and also a fusion of cultures. Harry, as Itachi's son, would be caught between the honor - based society of the Uchiha clan in the Naruto world and the magical community of the Harry Potter world. He could face discrimination from both sides, not fully belonging to either. His character would be shaped by the strict upbringing of the Uchiha and the more free - spirited nature of the wizards. And the plot could involve him trying to bridge the gap between these two very different worlds.
In such a fanfiction, the plot could involve Naruto growing up with Itachi as his father figure. He might inherit some of Itachi's unique abilities like the Sharingan in a unique way. Maybe he would face different challenges in the ninja world, as people would react differently to him being the son of Itachi. Also, his relationships with other characters like Sasuke would be very different, perhaps a more brotherly bond from the start.
Well, it could be a story full of surprises. Maybe Naruto would inherit some of Anko's more edgy traits. He might be a bit more unpredictable like her.
It would be a wild mix. Naruto might inherit some of Zeref's dark magic abilities while still having his own ninja skills. There could be a lot of internal conflict as Naruto tries to reconcile his ninja values with the dark nature of Zeref's power.
It would be very different from the original Naruto story. Naruto might have access to different powers related to Kaguya. For example, he could have a stronger connection to the chakra of the world.
It would be really different from the original Naruto story. For one, Naruto might have different abilities or a different upbringing. Maybe he would be trained in Tobirama's unique jutsu from a young age. And his place in the village hierarchy could be much different as well, perhaps being seen as a sort of royalty due to his connection to Tobirama.
In such a fanfiction, Naruto's backstory would be completely rewritten. His loneliness as a child might be because of his unique origin. He could be hunted by different forces who either want to use his connection to Kaguya or fear it. His relationships with his friends would also be complex. For example, Sasuke might view him differently, and there could be a new kind of rivalry or alliance based on Naruto's new heritage. And his role in the ninja world would be more of a bridge between the current ninja clans and the ancient Otsutsuki heritage.