It could completely change the dynamics of the Naruto universe. Their presence might have prevented many tragedies and shaped Naruto's life differently.
If they were alive, it would likely have a huge impact on Naruto's character development. Maybe he wouldn't have felt so alone and would have learned jutsu from his parents sooner. Plus, their skills and strategies could have altered the course of many battles.
One idea could be that Naruto grows up with his parents in a world where the Nine - Tailed Fox attack never fully happened. Minato and Kushina could train Naruto from a young age, passing on their unique jutsu and wisdom. Maybe Naruto would be less of an outcast and more of a confident shinobi early on.
It could start with Naruto being born and Minato and Kushina getting to raise him. They would teach him all about chakra control and ninjutsu. Naruto would be a happy kid growing up in a loving family environment.
If Minato and Kushina were alive in Naruto's story, Naruto would have grown up with his parents. He wouldn't have had to endure the loneliness he did as a child. Minato could have trained Naruto from a young age, passing on his powerful jutsu. Kushina could have taught Naruto about the Uzumaki clan's secrets. Also, the village of Konoha would have been a different place, with Minato's leadership and Kushina's strength adding to its security.
Minato being alive in fanfiction could mean more guidance and protection for Naruto. It could also lead to new alliances and conflicts within the ninja villages.
One possible plot could be that with Minato and Kushina alive, Naruto grows up in a complete family. They could train Naruto together, passing on their unique jutsu. Maybe Minato could finally fulfill his dream of bringing long - lasting peace to the Hidden Leaf with his family by his side. And Naruto would have a different kind of confidence and growth, not having to face the loneliness he did in the original story.
On a more personal level, they could face internal guilt. As Naruto grows up and achieves great things on his own despite their neglect, Minato and Kushina may realize what they've missed out on. This realization could cause them a great deal of internal turmoil and regret for not being there for their son when he needed them.
Well, Minato could start training Naruto from a very young age. He could pass on his Flying Thunder God Technique, which would give Naruto a huge advantage in combat. Kushina could train Naruto in the ways of the Uzumaki clan, like their strong chakra reserves and sealing techniques. With both of them alive, Naruto's training would be more comprehensive and personalized compared to what he had in the original story.
In many Naruto fanfictions where Naruto meets Kushina and Minato, it often creates a very emotional scenario. Naruto finally gets to meet his parents who he has only heard about. It could be a heart - warming reunion where they share stories, hugs, and Minato and Kushina get to see how far Naruto has come.
One possible plot twist could be that with Minato and Kushina alive, Naruto's training would be completely different. Minato, being a prodigy, could teach Naruto advanced jutsu much earlier. And Kushina might pass on some unique Uzumaki clan techniques. Maybe they would also change the political situation in Konoha, as Minato was a highly respected Hokage. This could lead to different alliances and power dynamics within the village and among the other ninja villages.
They could have all sorts of adventures. For example, Minato and Kushina could train Naruto together, passing on their unique jutsu. They might go on missions as a family, facing powerful enemies. Minato's Flying Raijin could be combined with Kushina's chakra chains in battle strategies. And Naruto would grow up with the love and guidance of both his parents, becoming an even more powerful ninja at a faster pace.