Naruto as a god in the fanfic could be more confident and less impulsive. His new powers and status may give him a sense of calm and wisdom that was lacking in his younger self. He may make decisions more rationally, thinking about the long - term consequences for the entire world rather than just his immediate surroundings.
Since he is a god, Naruto could become more solitary. His power level might be so far above others that it's hard for him to relate to normal people. However, he may also feel a greater sense of responsibility towards all living beings, and this could drive his actions in ways that are different from when he was just a ninja. He might be more involved in the grand scheme of things, like preventing disasters on a global scale instead of just fighting local villains.
It would change his moral compass completely. Naruto, who was once the defender of the village and a symbol of hope, could now view the village as something to be used for his new, darker purposes. His values would be warped, and he might even see his friends as mere pawns to achieve whatever the evil god desires. For example, he could sacrifice his friends' well - being for power or to carry out the evil god's will. This is a huge transformation from his original character.
The God Tree could transform Naruto in multiple ways. Physically, he might have new markings or a different appearance due to the power infusion. Mentally, he could gain a deeper understanding of the world's secrets. This new knowledge might make him more cautious or more adventurous depending on how he interprets it. His relationships could also be affected. He may attract new enemies who are jealous of his newfound power or new allies who see him as a key to something greater. All these changes can create a more complex and evolved version of Naruto in the fanfiction.
It makes him more powerful, which could lead to overconfidence at first. But as he realizes the great responsibility that comes with the god's power, he becomes more mature. For example, he might be more cautious in battles, thinking not just about winning but also about the consequences of using the god - like abilities.
His sense of justice could become more absolute. As a god, he may not tolerate any form of evil. He would strive to purge the ninja world of all dark elements. His power would allow him to enforce his version of justice, which could be both a good thing in terms of eliminating real threats, but also a bit scary as it might limit the free will of some ninjas who are not truly evil but just made some mistakes.
It would likely make Naruto more philosophical. As the reincarnation of a god, he might start to question the nature of power, destiny, and the world around him. This could lead to him having deeper conversations with his friends and mentors, and ultimately change his view of the ninja world and his place in it. For example, he might start to think about how to use his power not just for the sake of his village, but for the greater good of the entire world, which would be a huge shift in his character development.
Naruto would likely become more confident. Knowing he has the blood of a Greek god in him would give him an extra boost. He might also be more curious about the world outside of the ninja realm, since his Greek heritage would open up new possibilities. His sense of justice could become more intense, as Greek gods often have strong ideas about right and wrong.
His character changes in terms of his trust. He was always eager to gain the villagers' trust before, but after being blinded by them, that trust is severely damaged. He may become more guarded and less likely to open up easily. Also, his sense of justice might be more intense. He could be more driven to fight for the rights of those who are wronged, since he has now been a victim himself. He might also develop a deeper sense of empathy for others who have suffered at the hands of the unjust.
It could make him more brooding. Instead of his usual cheerful self, the dark chakra might cause him to be more withdrawn as he grapples with this new power within him.
He might become more withdrawn. Instead of being the energetic and enthusiastic Naruto we know, he could start to isolate himself from others.
He becomes more responsible. Having a child forces Naruto to think about someone other than himself and his goals. He has to be more cautious and make decisions that are not only good for him but also for his child's future.