Well, first of all, Naruto's usually carefree and positive personality could be tempered with Ace's more complex emotional side. Ace had a lot of baggage related to his family and his identity as a pirate. So Naruto might start to have some internal struggles about his place in the world. He could become more reserved in some ways, like not being as quick to share his feelings. At the same time, his loyalty would become even more intense. He would be willing to go to greater lengths for his friends and the village, almost to the point of self - sacrifice, which was a big part of Ace's character. And his view of power might change too. Instead of just seeing it as a means to protect and be recognized, he could see it as a way to uphold a certain code, like Ace's code among the pirates.
His personality might become more aloof. Sesshomaru is known for being cold and distant, so Naruto could take on some of those traits. He might be less likely to trust others immediately.
He might become more hot - tempered. Inuyasha was known for his short fuse, and Naruto could inherit that trait. He'd be quicker to anger, especially when faced with enemies or situations that seem unjust.
His relationship with Sasuke would be very different. Sasuke might see Naruto as more of a rival or a threat now that he has Whitebeard's power and influence. Naruto, on the other hand, would probably try to get Sasuke to understand his new purpose of bringing unity. His friends like Sakura and Kakashi would also be a bit in awe at first, but then they would support him as he tries to use his new powers for good.
Naruto's relationship with his sensei, like Kakashi, would also change. Kakashi would be extremely vigilant and try to train Naruto to control the Sephiroth - like powers. He might also be researching about this strange phenomenon. As for his friends in the village, some might be afraid of him, while others might see it as an opportunity for the village to become stronger. But overall, Naruto would feel a bit isolated as he's different now.
He might become more serene. Since Sadaiam might have a calmer and more nature - centered philosophy, Naruto could adopt some of that. He'd be less impulsive in his actions and more contemplative.
His personality could also become more calculating. Since the Sannin were known for their strategic thinking, Naruto would start to think several steps ahead. He might be more secretive about his plans too. He would no longer be the open - book Naruto. Instead, he would be like Jiraiya, who had his own secrets and plans. He would also show more patience, which is something he lacked before but the Sannin had in abundance when dealing with complex situations.
Naruto might become more reserved. Growing up under Zeltrech, he could be exposed to a more sophisticated and perhaps less rowdy environment compared to Konoha. So instead of his usual loud and brash self, he could develop a more calm and calculated side.
Naruto's normally bright and positive personality might become more conflicted. Since Douma has a more complex and often morally ambiguous nature, Naruto would have to grapple with new emotions. He might become more reserved as he tries to figure out how to handle Douma's powers without losing his own identity.
Naruto might become more calm and collected. Goku has a certain simplicity and focus in his personality. Naruto could pick up on that and not be as impulsive as he usually is.
His personality might become more refined. Instead of being the rowdy Naruto we know, he could be more composed and polite due to the influence of the daimyo's court.