Well, one thing that could happen is that Naruto would be overjoyed. He has always longed for a family, and to suddenly find out his parents are alive would be a dream come true. He'd probably have a million questions for them about his past, why they had to be away, and what their lives were like. And his relationship with his friends might change a bit too, as he now has this new family aspect to his life.
In a fanfiction where Naruto finds out his parents are alive, it could completely shift the Naruto universe. His parents could help him in his quest to bring peace to the ninja world. They might have knowledge of old enemies or secrets that could aid Naruto. Naruto would also have to adjust to having a family, which could be difficult since he's been on his own for so long. He'd need to learn how to be part of a family unit again, and his parents would need to get to know the person their son has become.
Naruto would probably want to introduce his parents to all his friends. It would be a big moment for him to show off his family, especially to Sasuke. His relationship with Sasuke could also be affected in a positive way as Naruto now has a more complete family.
He might find old mementos of his parents. Maybe a photo album that shows their life before he was born. It could be filled with pictures of his father's training days and his mother's gentle smiles. This discovery could give Naruto a deeper understanding of his family's history and make him feel more connected to them.
Well, one possibility is that Naruto would be overjoyed. He has always longed for his mother's love. He might spend days just talking to her, sharing all his experiences, from his training with Jiraiya to his battles against the Akatsuki. Kushina would probably be extremely proud of him and would start teaching him some Uzumaki clan jutsus that were passed down in the family. And Naruto's relationship with the village would also change. He would no longer be the orphan that everyone pitied. Instead, he would be the son of a hero, which could bring a whole new dynamic to his standing in Konoha.
Well, it could lead to a lot of things. Maybe Bella will be shocked at first and then feel a mix of anger and relief. She might confront Clark about why he let her think he was dead. Their relationship could either be repaired or become more strained depending on Clark's reasons for faking his death.
In such a fanfiction, Harry would likely be in shock. His world view has been centered around their deaths for so long. He could be hesitant to trust this new reality. But once he does, he'd have a whole new support system. His parents could teach him magic they've learned in their 'hidden' years. This would make him even more powerful and give him a different standing among his peers.
In the fanfiction, Abby finding out about Clarke being alive could be a turning point. If Abby was in a difficult situation before, this news could give her new hope. She might start making plans to reunite with Clarke. It could also affect the relationships between other characters. For example, if there were some who thought Clarke was dead and had moved on in some way, Abby's discovery could stir things up.
His confidence would probably soar. Knowing he has his parents, who are likely strong ninjas, supporting him would make him feel more secure. He might become a bit less reckless as he now has people who care about him deeply and he wouldn't want to worry them.
In the fanfiction, Erik could also be in a state of shock at first. He might struggle to accept this new reality. After all, having a son is a huge thing, especially when he had no idea before. He could be hesitant to approach Peter, worried about how Peter will react to the news.
One thing that could happen is that Dark Naruto would be filled with a mix of emotions. He could be angry at the village for hiding this from him, yet also feel a glimmer of hope. This discovery might make him question his loyalty to the forces that led him to become 'dark'. He might also feel a sense of longing for the family he thought he had lost.
Well, one possibility is that the village's attitude towards Naruto would change drastically. They might start to see him as a valuable asset rather than an outcast. People who once shunned him could now be eager to befriend him, thinking of the power and status that comes with being related to his heritage.