Well, it could really shake up the plot. Future Naruto would bring knowledge of future threats. So, he could train past Naruto to be better prepared. Maybe he'd teach him some secret jutsus that were developed later. This would make past Naruto a more formidable opponent. Also, it could affect Naruto's character growth. Instead of learning things the hard way through trial and error, he's getting a shortcut with the training from his future self. This might make him a bit more confident, or perhaps a bit overconfident, which could lead to different interactions with other characters.
In such a fanfiction scenario, it can have a huge impact on the plot. Future Naruto has more experience and knowledge. He can train past Naruto in advanced techniques, like better control of the Nine - Tails' chakra. This could potentially change the course of battles in the past. For example, in the fight against Pain, past Naruto might be able to use new skills taught by his future self to win more easily. It also might change Naruto's relationships. If he becomes stronger faster, his friends might view him differently, and enemies might be more cautious.
The impact on the plot can be multi - faceted. Firstly, in terms of power - up, past Naruto will gain skills and strategies way ahead of his time. This could lead to quicker resolutions of conflicts. For instance, the Akatsuki's plans might be thwarted much earlier. Secondly, on an emotional level, past Naruto might struggle with the knowledge that his future self has been through so much. It could either motivate him to avoid certain fates or make him more reckless. And finally, in the grand scheme of the Naruto world, this training could change the balance of power among the villages, as Konoha would have a super - powered Naruto much earlier than expected.
Kushina's training in the fanfiction might also impact Naruto's mental state. Knowing that his mother is there to train him gives him more confidence. He feels more connected to his family and his Uzumaki heritage. This new - found confidence reflects in his battles, where he is more fearless and decisive.
It makes Naruto more complex. Instead of just being the energetic and determined ninja we know, he has a darker side. His tortured past can add depth to his character, making him more relatable as he battles with things like self - doubt and fear.
It can completely change the direction of the plot. For instance, if Naruto dominates the Kyuubi early on, he might become a much more formidable opponent much sooner. This could lead to different battles and challenges. Instead of struggling with the Kyuubi's power, he can use it to his advantage, and this might make some of the original villains seem less of a threat, forcing the story to introduce stronger adversaries.
One possible plot could be that Naruto from the past somehow gets a glimpse of the future of Konoha. He sees new threats emerging and starts training in ways that can counter those threats in the future. He might also try to influence the present actions of his friends and allies based on what he saw in the future.
Well, one possibility could be that Naruto has some sort of visionary ability where he can see snippets of the future during his past adventures. For example, he might see the final battle against Kaguya while he's still on a mission with his team as a genin. This could change his approach to training and how he interacts with his friends, as he tries to prepare them for what's to come.
In some fanfictions, Naruto's past of being an outcast in the village makes him determined to create a more inclusive future in the Hidden Leaf. His experiences of loneliness drive him to ensure no one else feels left out.
There are quite a few things. For one, he could teach past Naruto about the deeper secrets of the Uzumaki clan. Since Future Naruto has explored more about his heritage. He could also give tips on handling the Kyuubi's chakra more smoothly. Maybe some new jutsu combinations that he discovered over the years. And not to forget, how to better read an opponent's moves during a fight, which is a skill he would have refined over time.
The kiss can be a turning point. For example, it might inspire Naruto to strive harder in his training. If he was feeling down or doubting himself, the kiss could give him the motivation he needs.
Naruto has been through a lot in his own time, so he may use that experience to adapt to the past. He might start by making friends with the younger versions of people he knows. He'll also have to be careful not to reveal too much about the future to avoid disrupting the timeline. He could use his ninja skills to earn respect and find his place in the past world.
The meeting could also have an impact on Naruto's relationship with his village. If future Naruto shares with past Naruto how important it is to have the trust and support of the village in the long run, past Naruto might focus more on building bridges within Konoha. This could lead to a more united village earlier in the story and change the way they face external threats.