One possibility is that Naruto would finally experience the love and guidance of his parents that he always longed for. Minato could train him from a young age, passing on his powerful jutsu. Kushina would be there to comfort him when he's sad. They could all have family dinners together, and Naruto would grow up in a warm and loving environment, which would likely make him a more confident and less lonely child.
Naruto would be more self - assured. Growing up with his parents' love and support, he wouldn't have to constantly seek attention in a desperate way. He'd know his worth from the start.
It could be that in a special mission, Naruto discovers a hidden jutsu that allows him to communicate with the spirits of his deceased parents, leading to a touching reunion.
His relationship with his parents would be loving. Minato would be a strict but fair father, teaching Naruto about ninjutsu and the responsibilities of being a shinobi. Kushina would be the warm, affectionate mother, always there to comfort and encourage Naruto. They would support his dreams and be proud of his every achievement.
Well, it could be a very emotional encounter. Naruto would be able to see his parents in their prime. His father, Minato, might give him advice on how to better handle his role as a Jinchuriki. His mother, Kushina, could cook for him, just like she always wanted to do for her son. They could also talk about the future of the Hidden Leaf Village and Naruto's part in it.
The village would be in chaos. Naruto was seen as the hope for the future, so his death would leave a huge void. His friends like Sasuke and Sakura would be devastated. They might turn against Naruto's parents, leading to more conflict in the village. Also, the balance of power in the ninja world could shift as Konoha would be weakened without Naruto.
On a personal level, Naruto would finally get the family he always wanted. But it might also bring some confusion and adjustment issues. His parents would be from a different time, and they'd need to adapt to the new world Naruto lives in. For example, they might be shocked by the new technology and the changes in ninja warfare.
One possible plot could be that Naruto is somehow caught in a powerful jutsu accident that was originally meant for someone else by his parents. Maybe they were trying to protect the village from a great threat and miscalculated the jutsu's range or power. This could lead to Naruto's untimely death and then the story could explore how his parents deal with the guilt and grief, as well as how the village reacts to losing Naruto, who was seen as a hero in training.
He could hate them because he felt they were absent during his difficult childhood. Naruto faced a lot of loneliness and bullying, and if he thought his parents could have prevented it but didn't, that would breed hatred.