A great plot point would be Naruto's journey to master the Ten - Tails' power. He would have to explore the depths of this new power source. This could involve traveling to ancient and hidden places in the ninja world that are related to the origin of the Tailed Beasts. Along the way, he could discover long - lost secrets about the ninja world and his own heritage.
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.
Another plot point could be the emergence of new villains. With Naruto's new power, some long - hidden or new evil forces might see him as a threat to their plans. These villains could be much more powerful than the previous ones and have unique abilities to counter Naruto's Ten - Tails power. For instance, they might have the ability to nullify his chakra for short periods.
A possible plot is that the Three - Tails Jinchuuriki discovers a unique ability related to the tailed beast that no one else knew about. For example, they could find a way to use the Three - Tails' chakra to heal others in a time of great need. This could also attract unwanted attention from those who would misuse this power. They then have to protect this new - found ability while also dealing with the normal challenges of being a Jinchuuriki.
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.
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.
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.
Well, in this fanfiction, it might be that Naruto's transformation into the four - tails form reveals some hidden secrets about the Nine - Tails' origin. This could lead to a whole new adventure as he tries to uncover more about it. Also, perhaps the four - tails form has a different set of abilities compared to what we've seen before, which makes for exciting battles and challenges for Naruto to overcome.
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.
Another cool plot twist could be that the Ten Tails has the ability to split into multiple smaller entities, each with its own unique power. This would force Naruto and his friends to come up with new strategies to deal with these new threats. And it might also lead to some of these smaller entities turning good and helping Naruto in unexpected ways.
Maybe a plot where a jinchuuriki loses control of their tailed - beast and the other jinchuuriki have to find a way to calm it down without harming their comrade. This could involve a lot of emotional moments as they try to reach out to the troubled jinchuuriki.
One idea could be exploring the relationship between the Jinchuuriki and Shukaku in more depth. Maybe the Jinchuuriki tries to communicate with Shukaku in a different way than in the original series, leading to new powers or understandings. Another plot could involve the Jinchuuriki being targeted by a new group who wants to use Shukaku's power for their own evil purposes. The Jinchuuriki then has to fight not only to protect themselves but also to keep Shukaku from being misused.
Well, you could focus on the relationship between the jinchuuriki and their extended family members in the fanfiction. For instance, how does the jinchuuriki's relationship with their grandparents change when they find out about the tailed beast? Also, a plot could revolve around the family trying to help the jinchuuriki control the power of the tailed beast. They could seek out ancient scrolls or wise sages to learn techniques that would make it easier for the jinchuuriki to co - exist with the beast.