If Naruto becomes the Ten - Tails Jinchuuriki in fanfiction, it would be a game - changer. Firstly, his physical strength would skyrocket. He could move at incredible speeds and deliver punches and kicks with devastating force. Secondly, his sensory abilities would be off the charts. He would be able to detect enemies from miles away. Thirdly, his ninjutsu would be on a whole new level. He could create massive and powerful jutsus with ease. However, he would also have to deal with the potential negative effects of containing such a powerful entity within him, like the risk of losing control. But knowing Naruto, he would find a way to master it and use it for good.
If the Ten - Tails Jinchuuriki travels through time in Naruto, they could change the fates of many characters. For example, they might save characters who were supposed to die, like some of the Uchiha clan members. This would have a huge impact on Sasuke's story and the overall plot related to the Uchiha. It could also lead to different alliances forming as the power balance in the ninja world shifts due to the presence of this extremely powerful being.
In this fanfiction, Naruto as the Ten - Tails Jinchuuriki could change the entire power dynamic in the ninja world. Enemies that once thought they could easily defeat him would now be terrified. His new form might also give him unique abilities like instant teleportation or the power to create large - scale illusions. It could also lead to a new alliance among the villages as they see Naruto as an even greater force for good.
Well, Naruto would likely have a whole new set of powers. The Sanbi's abilities could combine with the Nine - Tails' power in interesting ways. He might be able to use water - based attacks more effectively, as the Sanbi is associated with water. Also, his relationship with other characters might change. For example, the Hidden Mist Village might view him differently since the Sanbi was once their asset.
In fanfiction, if Naruto becomes the Ten - Tails, he would likely gain an incredible amount of power. He could potentially reshape the ninja world with such power. His physical abilities would be off the charts, with strength, speed, and durability far surpassing any normal ninja. Also, his chakra reserves would be virtually limitless, allowing him to perform extremely powerful jutsu without tiring easily.
Another possibility is that the time - traveling Ten - Tails Jinchuuriki ends up in a time during a great war. Their presence could either end the war quickly if they side with one of the parties, or make it even more chaotic as all sides would either try to recruit or eliminate this powerful being. They might also have the power to change the outcome of certain battles and thus reshape the world's power balance.
In a fanfiction where Naruto becomes the Juubi Jinchuuriki, his appearance might even change. He could have markings or an aura that shows his new status. His role in the shinobi world would be completely redefined. He would no longer be just a powerful ninja but a being on a whole different level. He could use the Juubi's power to heal the land that has been damaged by years of war. And his enemies would have to think twice or even a hundred times before attacking him as his power would be so overwhelming that it could mean instant destruction for those who oppose him.
One interesting plot point could be the reaction of the other Jinchuuriki. Since Naruto now has the power of all the Tailed Beasts combined, the other former Jinchuuriki like Gaara might have mixed feelings. They could be both in awe of Naruto's new power and a bit envious at the same time.
His relationship with Sakura would change. Sakura might be more in awe of him, but also worried about his new power. She would try to be there for him as a medic - ninja, ready to heal him if the power gets out of control.
In a fanfic where Naruto is the Sanbi Jinchuuriki, he might have different powers. The Sanbi gives abilities related to water and some unique forms of chakra control. Naruto could potentially use these new powers to create more diverse and powerful jutsu. For example, he could combine his already strong wind - style jutsu with water - style jutsu enhanced by the Sanbi's power, making his attacks more unpredictable and deadly.
One possible plot twist could be that Naruto, as the Ten - Tails Jinchuuriki, has a hard time controlling the power at first. He might accidentally cause destruction in the Hidden Leaf Village. His friends would initially be afraid of him, but then they realize they need to help him master this power. For example, Sasuke could use his Sharingan to help Naruto understand the chakra flow better.