Well, first of all, Naruto's red hair in the future might indicate a change in his chakra due to some event in the future. In the past, this could mean he has a different type of chakra reserve or flow. He might be able to use some sort of future - proofed rasengan, like a more powerful or multi - element version. His ability to sense danger could be heightened because of his experiences in the future. He could also have a new way of using shadow clones, perhaps being able to send them across greater distances or make them more durable. And his red hair could potentially be a key to unlocking some ancient or future - related power that was dormant in the past.
His abilities might be enhanced. Since he's from the future, he could have mastered new forms of chakra control. His red hair could be a sign of a new chakra nature or power. For example, he might be able to use time - related jutsu more effectively in the past because of his experience with time travel. He could also have new combat skills that he developed in the future which would give him an edge over the past - time opponents.
In a fanfic, future red - haired Naruto's abilities could be different in the past in several ways. Maybe he has access to advanced technology from the future that he can use in combination with his ninja skills. His red hair could be associated with a new kekkei genkai that he discovered in the future. This new ability could allow him to manipulate elements in ways not known in the past. He would also have the advantage of knowledge about future battles and techniques, so he could train his past - self and others to be stronger.
One possible plot could be Naruto going back in time with his red hair. Maybe he has new powers due to some future experiment. He could use his knowledge of the future to prevent certain tragedies in the past. For example, he might stop the Uchiha massacre. His red hair could be a sign of a new form or a side - effect of time travel. He would interact with his younger self and the other characters in a different way, leading to a whole new set of adventures and relationships in the Naruto world.
Naruto could have a greater control over his chakra. Since Kushina would be there to guide him, he would likely avoid some of the pitfalls he faced in the original story. His physical strength might also be enhanced as Kushina could train him in ways that utilize his Uzumaki bloodline more effectively.
His physical abilities would be enhanced. Constantly running, climbing, and fighting in the forest would make him stronger and more agile. His stealth skills would be top - notch as he'd have to hide from the forest's predators.
The older characters such as Kakashi would be cautious. They would recognize Naruto but also be worried about the implications of someone from the future being in the present. They would want to know if his presence could change the future in a negative way. For example, they might fear that his actions could lead to the earlier awakening of a powerful enemy. As for the villains, they might see future Naruto as a threat and try to eliminate him as soon as possible. Orochimaru, for instance, would be very interested in Naruto's future powers and might try to capture him to study. And the new generation of ninja in the past would look up to future Naruto, seeing him as a symbol of what they could become.
His chakra control would probably be better. In a temple, he might learn meditation techniques that help him master his chakra more effectively. Also, his physical abilities could be more refined in terms of balance and grace, like a monk's movements.
Naruto's combat style would be more refined. Sakumo was a highly skilled ninja, and he would teach Naruto better swordsmanship skills perhaps. Naruto's taijutsu could also be more precise and calculated. Also, Naruto might develop better chakra control earlier, as Sakumo could instill in him the importance of efficient chakra usage from a young age.
Past Percy is likely to be more impulsive. He hasn't faced as many challenges yet and might act before thinking. Future Percy, on the other hand, would be more cautious and calculating, having learned from past experiences.
His chakra control might be affected by the different magical energies in the DxD world. Maybe his chakra could interact with the devil or angelic powers in unexpected ways. For example, his Rasengan could gain new properties if combined with devilish power. His shadow clones might also be able to do things like sense magical auras, which they couldn't do in the Naruto world.
First of all, Naruto's sage mode gives him enhanced perception and strength. Trunks could benefit from this by having Naruto share his sage chakra with him. This could potentially give Trunks a new form or boost his existing abilities. On the other hand, Trunks' energy attacks could be channeled through Naruto's chakra pathways. This would allow Naruto to use ki - like attacks without having to learn the ki - manipulation techniques. They could also combine their defensive abilities. Naruto's chakra shields and Trunks' ki - based defenses could merge to create a super - strong shield against powerful attacks.
His training would likely incorporate more swordplay. Since Sakumo was a master swordsman, Naruto would probably start training with swords at an earlier stage. He might also be taught some of Sakumo's signature moves, which could be very different from the regular ninjutsu he's used to.