The relationship between Harry and his parents would be completely different. He would grow up with their love and guidance, rather than feeling like an orphan. There would be a much stronger family bond.
In the fanfiction, Lily would likely face a great deal of prejudice. The wizarding world would be very suspicious of her because of who her father is. This is different from the original Lily who was respected and loved. So, she would have to work hard to prove herself, which could lead to a more complex and hardened personality compared to the original.
Harry's character development would be significantly different. With his parents alive, he would be exposed to a more stable family environment. His magical education could start earlier and be more comprehensive as he learns from two powerful wizards. This could make him more powerful and less impulsive. Instead of seeking validation from others like he did at Hogwarts in the original story, he would have the unconditional love of his parents, which could shape him into a more well - rounded and less angst - ridden character. For example, he might not have had such a strong urge to prove himself in dangerous situations.
In some fanfictions, if they survived, they might have changed the whole course of the wizarding war. They could have joined forces with other powerful wizards and witches earlier and potentially prevented Voldemort from gaining as much power as he did in the original story. They might have also influenced the Hogwarts curriculum, emphasizing more on defensive magic against the Dark Arts from an earlier stage.
Harry would be a different character in this fanfiction. He'd have a different upbringing, being the son of James Bond. This would give him a different perspective on the world. He would be more attuned to the Muggle world's espionage and intrigue, which would affect his relationships at Hogwarts. He might be a bit of an outsider among his peers, as his experiences and knowledge would be more diverse. He could be more of a loner, but also more self - reliant. His decision - making would be influenced by Bond's rational and calculated approach. For example, when facing a dark wizard, he might analyze the situation more like a spy, looking for weaknesses and planning several steps ahead, rather than just reacting impulsively with magic as the original Harry might do in some cases.
Yes, there are quite a few. You can start by looking on platforms like Archive of Our Own. Some fanfictions in this category explore how her survival would change the entire Harry Potter storyline, with her being able to directly influence Harry's upbringing and the fight against Voldemort.
It would most likely have a huge impact on Lily's relationship with James. If she has any romantic feelings for him, seeing him kiss Sirius would be a big blow. She might become distant from James, feeling jealous or just plain confused. As for her relationship with Sirius, she could feel betrayed, like he's stolen James away from her in some way. This could lead to a lot of tension and awkwardness between them all.
He'd probably be more confident. Growing up with Lily, he'd have a strong female role model. He'd likely be more in touch with his emotions as Lily would encourage him to express himself. Also, his magical abilities might be more refined from an early age as Lily could start teaching him basic magic earlier than he learned in the original story.
Harry would likely be overjoyed at first. After all, he never really got to know his parents. Their return could give him a sense of family and belonging that he's always craved. It could also help him deal with some of his past traumas, having his parents there to support him.
James might be really excited. He's heard stories about his father's friends, and Teddy is like a link to that past. He'd probably be full of questions about the Marauders and what his dad was like as a student. Lily, on the other hand, would be more reserved but still interested. She might be a bit more empathetic towards Teddy, considering his difficult past. Overall, they'd both be curious and eager to learn more from him.
They could be shocked at first. But then they might start to enjoy it as they see the creativity of the fans.