If Naruto had hidden powers, it might make his friends a bit more cautious around him at first. They'd be in awe of his new abilities but also worried about how he'd change. For example, Sasuke might see Naruto's hidden powers as a threat to his own goals, which could strain their relationship even more.
His hidden powers might be the ability to control all five basic nature types without any training. In the original story, Naruto had to work hard to master different nature types. But in a fanfiction, it could be that he has this innate ability which was hidden all along. This would make him extremely powerful and feared by his enemies.
It might actually strengthen his relationships in some ways. His friends could see him as an even more powerful ally. Naruto, with these new powers, could protect them better. Sakura, for instance, would feel safer around him and this could lead to a deeper bond of trust between them.
His friends might be a bit wary at first. But if Naruto uses his powers for good, like saving them from danger, they would accept him more. His relationship with Sasuke could change too. Sasuke might see Naruto's new powers as a threat or as something to strive for in terms of power.
His prototype powers could make others either fear or envy him. Some might see him as a threat due to his new and untested abilities. For example, villagers who were already suspicious of Naruto because of the Nine - Tailed Fox might be even more wary.
His relationship with his teachers would also be different. Iruka would be extremely proud but also a bit worried about Naruto getting too cocky with his powers. Kakashi, on the other hand, would be more focused on training Naruto to control and master these powers. Naruto's new powers could also attract the attention of other ninja villages. This would put pressure on his relationships with the people in his own village as they might see him as a potential target or a valuable asset. Some might be jealous, while others would be more eager to be his ally.
His friends in Konoha like Shikamaru and Kiba would see Naruto in a new light. They might rely on him more for protection, but also feel a bit of distance because of his elevated status. Naruto would have to work hard to maintain his old friendships and show them that he's still the same person deep down.
If Accelerator were in the Naruto universe in a fanfiction, his ability to control vectors could be extremely overpowered. He could potentially deflect all ninjutsu attacks by simply reversing their vectors. This would make him a formidable foe to even the strongest ninjas like Naruto or Sasuke. His presence would likely disrupt the power balance in the Naruto world.
His relationship with Sasuke would be greatly affected. If Naruto could control time, he might be able to show Sasuke what the future could be like if they worked together instead of being enemies. This could potentially heal their fractured relationship much faster. With space - control powers, Naruto could quickly reach Sasuke whenever he was in trouble, strengthening their bond of friendship.
His friends would be very cautious at first. For example, Sasuke might be more on guard, seeing Naruto as a potential threat. However, true friends like Shikamaru might try to understand what's going on and find a way to help Naruto control his new powers.
His powers might make some characters jealous. For instance, Draco could be jealous of Harry's unique moon powers and try to undermine him. On the other hand, his friends like Hermione and Ron would be supportive but also a bit in awe. They might rely on him more during situations where his moon powers could be useful.