Well, in some fanfictions, Naruto might obtain the truth - seeking balls through a special encounter. Maybe he meets an ancient sage who bestows them upon him as a way to combat a new and powerful enemy. It could also be the result of some unique chakra manipulation or a once - in - a - lifetime transformation that gives him these powerful orbs.
He might be able to see through illusions more easily. Since truth - seeking balls are often associated with a certain level of 'truth' perception, they could enhance Naruto's ability to detect and break genjutsu that are used against him.
In some fanfics, Naruto might obtain the Truth - Seeking Balls through a special training or a unique encounter. Maybe he discovers an ancient power source or is bestowed with the ability by a powerful entity. It could also be the result of a new form of chakra transformation that he unlocks during a life - threatening battle.
One plot possibility is that Naruto's Truth - Seeking Balls are seen as a valuable asset by the RWBY characters. They might try to figure out how to replicate or use the power in some way. Another is that villains in the RWBY world would target Naruto specifically because of his powerful orbs. For example, Salem could see the Truth - Seeking Balls as a threat to her plans.
In fanfiction, if Naruto uses Truth - Seeking Balls, it could change the power dynamics in the Naruto universe. His friends and allies might rely on him more, and his enemies would be more fearful. Also, it might lead to new alliances or rivalries. For instance, some characters might want to learn from him how to use such a powerful ability, while others might see him as a threat to their own power and try to stop him.
Well, it depends on the specific fanfiction. There are countless fan - created stories out there. Some authors might think it would be an interesting addition to Naruto's abilities, so they write him with the truth - seeking balls. However, not all fanfictions will follow this idea. Some might stay more true to the original powers in the Naruto canon and not give him this particular ability.
One implication could be that he would become even more of a force to be reckoned with. His combat abilities would be greatly enhanced, allowing him to defeat stronger opponents more easily.
In some fanfictions, Naruto might gain the ability to use Truth - Seeking Balls through a special training regimen. Maybe he discovers a hidden power within himself that allows him to access this ability. It could also be due to some kind of power - up from a powerful ally or a unique encounter with a new form of chakra.
Well, it would greatly tip the power balance. Naruto already has a vast amount of chakra and powerful jutsus. With the Truth - Seeking Balls, he'd be nearly unbeatable. These balls can nullify ninjutsu, so most opponents' attacks would be useless against him. His status as a major power in the ninja world would be even more firmly established, and it would force enemies to come up with new and more creative strategies to deal with him, or just avoid him altogether.