The plot might involve Naruto uncovering secrets about Madara that were previously unknown. He could find out about Madara's true intentions for the future of the ninja world and have to decide whether to follow in his father's footsteps or carve his own path. Maybe he discovers a hidden Uchiha clan technique that only he, as Madara's son, can master. This could put him in a position of great power and also great danger as others may try to steal the technique from him.
One possible plot could be Naruto having to deal with the expectations and the dark legacy of the Uchiha name. He might struggle with the power that comes with being Madara's son. For example, he could have an in - built affinity for powerful Uchiha jutsus like the Sharingan from birth, but also face prejudice from those who fear the Uchiha. Another aspect could be how his relationship with Sasuke changes. Since Sasuke is also an Uchiha, Naruto might have a different dynamic with him, perhaps a more competitive or brotherly one where they both explore their Uchiha heritage together.
If Naruto becomes Madara Uchiha in fanfiction, it could drastically change the plot. Firstly, the relationships would be turned upside down. Naruto's friends might see him as an enemy, especially Sasuke who has a complex relationship with the Uchiha legacy. The power dynamics in the ninja world would also shift. Naruto, with Madara's power and knowledge, could either rule with an iron fist or try to reshape the world in a more extreme way compared to his original goal of peace. And the Akatsuki's plans would likely be disrupted as Naruto, in Madara's form, might have different motives regarding the tailed beasts.
The fanfiction could explore how Naruto Uchiha's character changes as the son of Zeus. He might become more confident, yet also more burdened. His relationships with his family and friends could be completely transformed. For instance, Sasuke might see him as a threat now that he has divine heritage. And Naruto would have to prove himself not just as a ninja, but as a worthy son of Zeus, perhaps by going on a quest to retrieve a powerful artifact that is important to both the ninja and godly worlds.
A plot could be that Madara meets a female ninja who has a unique ability. He is initially drawn to her power but soon discovers her kind heart. They start a relationship. However, his ambition to change the ninja world causes friction. She doesn't fully support his extreme methods. As he delves deeper into his plans, she becomes a target of those who oppose Madara. In the end, he has to choose between his love for her and his grand vision for the world.
In fanfiction, the author could create a scenario where there was a secret relationship between an Uzumaki ancestor of Naruto and an Uchiha. This relationship could have been hidden for generations. And through some family secrets being revealed, it's discovered that Naruto is actually Madara's grandson. It could also involve some kind of genetic manipulation or curse that ties the two families together in a way that wasn't known before.
Well, perhaps the plot could involve the main character having the powers of both the Harry Potter world and being the heir of Madara Uchiha. They might use Sharingan - like abilities to see through magical illusions in Hogwarts. And they could combine ninjutsu with magic, for example, using a fire - based ninjutsu spell to fight dark wizards.
One possible plot could be that Madara Uchiha somehow gets transported to the world of Fairy Tail. He might initially be seen as a threat due to his powerful and somewhat menacing appearance. But as the story progresses, he could form an unlikely alliance with some of the Fairy Tail members. For example, he might team up with Natsu to fight a common enemy. Madara's Sharingan abilities could be a great asset in battles against dark guilds or other powerful foes in the Fairy Tail universe.
Naruto might be more brooding. Since he is the son of Madara, he may carry some of the Uchiha's more serious and intense traits. He could be less of the carefree and goofy Naruto we know, at least on the surface. However, his core of kindness might still remain, just expressed in a different way, like he might be more calculating in how he helps people.
Perhaps a plot twist could be that the village initially rejects Naruto due to his relation to Fem Madara. They fear he might turn out like his mother and bring destruction. This would force Naruto to prove himself in a different way than in the original series. He might have to find allies outside the village and then come back to redeem himself in the eyes of the villagers.
Well, if Naruto were Madara's brother in a fanfiction, it would completely change the Naruto universe. Their power levels combined could make them an unbeatable force. Naruto's positive attitude might have influenced Madara to not go down the dark path he did in the original story. It could also lead to different alliances and battles, with Naruto perhaps trying to reason with Madara and change his view of the ninja world.
Yes, there are several interesting 'Naruto is Madara Uchiha' fanfictions. You can find them on popular fanfiction websites like Fanfiction.net or Archive of Our Own. Some of these fanfictions explore unique storylines where Naruto has some connection to Madara Uchiha, either through reincarnation or some other creative plot device.