The story would take a different turn in terms of character development. Kimmimaro was mainly focused on serving Orochimaru and proving his worth through his strength. Naruto, however, is driven by his dreams of becoming Hokage and protecting his friends. So, if Naruto replaces Kimmimaro, the focus of the story would shift from loyalty to a dark master to more noble goals. This would also impact how other characters in the story view and interact with the character in Kimmimaro's place.
In such a fanfic, Naruto might replace Kimmimaro in a mission. Since Naruto is known for his determination and never - give - up spirit, he could complete the mission in a completely different way. He'd probably try to talk to the enemies first, to understand their motives, rather than just attacking like Kimmimaro might have. And his presence could inspire his teammates in a different way too.
The plot would take on a more action - oriented and heroic tone. Naruto is a hero at heart, always looking to protect the weak and fight for what's right. In contrast to Riser, he would actively seek out problems to solve and villains to defeat. His presence would also attract different kinds of antagonists, those who oppose his ideals of peace and justice, which would create a whole new set of storylines.
Well, in a fanfiction where Naruto replaces Itachi, the whole power dynamic in the story would shift. Naruto has his own set of powers and abilities like the Nine - Tails chakra. This would change how battles are fought. In Itachi's place, Naruto might be more open about his intentions and not keep so many secrets. He could inspire the Uchiha clan in a different way, perhaps leading them towards a more positive path rather than the path of revenge and secrecy that Itachi's actions led to.
His relationship with Jiraiya would be different. Jiraiya trained Minato, but with Naruto replacing Minato, Jiraiya might train Naruto even more intensively from an earlier age. Naruto would also probably be more open with Jiraiya about his feelings and plans, as he's not as reserved as Minato.
Well, one possible outcome is that Naruto could change the course of many events. For example, he might deal with the Akatsuki in a very different way. Since Naruto has his own unique set of skills and a different personality compared to Minato. He is more brash and open - hearted, so his diplomatic approaches could be more direct and less stealthy like Minato's.
The dynamic between Poseidon and his son, Percy (in the original), would be completely flipped. Instead of a father - son relationship, they would be more like two separate entities with Poseidon now in Percy's role. Poseidon would have to face the same challenges Percy did, but without the advantage of Percy's unique experiences as a demigod growing up.
A possible plot development could be that Naruto's connection to the Nine - Tailed Fox gives him an advantage in a situation where Shirou was at a disadvantage. For example, if there was a powerful dark force in the story, Naruto could use the Nine - Tailed Fox's power to fight it off, while Shirou might have struggled more. Also, Naruto's charisma could attract different allies compared to Shirou, and these new allies could bring in their own sub - plots and story arcs.
In a Naruto - replaces - Itachi fanfiction scenario, the plot would change significantly. Naruto's presence instead of Itachi would mean a different set of actions and reactions. Naruto is known for his determination and his ability to make friends. So, he could potentially form alliances that Itachi would not have. This could change the balance of power among the different ninja villages. Also, Naruto's different fighting style and abilities would make battles play out in new ways, which would then impact the overall plot direction.
Well, the story would likely change a great deal. Captain America has a different set of skills, values, and a distinct personality compared to Steve Trevor. For one, Captain America is a super - soldier, so physically he would be much more capable in combat situations. His leadership style, which is more about leading by example and inspiring those around him, might also affect the relationships between characters in the fanfic. Maybe the dynamic between him and Wonder Woman (assuming this is set in the DC universe) would be completely different, perhaps more of a friendly rivalry or a partnership based on mutual respect for each other's abilities.
The story could be rewritten with Captain America bringing his own brand of heroism. He might be more proactive in taking on challenges. For instance, instead of Steve Trevor's approach to a mission, Captain America could use his military - trained instincts to plan and execute operations more efficiently. This would change the pacing of the story as things might happen more quickly.