Well, it can change the relationships in the story. Harry's relationship with Sirius, for instance, might not be as father - like as in the original. Since Lily is back, Harry has his real mother, and Sirius may take on a different role. Moreover, it can also affect the power balance. With Lily's return, the Order of the Phoenix could have a stronger magical force at their disposal, potentially changing the outcome of battles.
It changes it a great deal. In the original, Harry was a hero, but still a mortal with limitations. In 'Harry is God' fanfiction, he has unlimited power. For example, he can instantly defeat Voldemort without a big battle. He can also change the very fabric of the wizarding world, like creating new spells or magical creatures.
The relationship dynamics change drastically. Instead of having that tragic but heroic backstory of his parents dying for him, he has a story of being left behind. This would also change his relationship with Dumbledore. Dumbledore might be more hesitant to trust Harry with the fight against Voldemort as his abandonment could indicate some instability or unworthiness in Harry's character in this fanfiction version.
It changes the power dynamics. In the original, Harry had some level of protection within Hogwarts. But as a fugitive, he has to rely on his own wits and skills more. So, the fanfiction concept makes him more self - reliant.
It changes the setting completely. Instead of Hogwarts or other known places, he's in a tree. This would mean different interactions, like with forest creatures instead of classmates.
It changes it a great deal. Firstly, Harry's origin is completely different. Instead of being an orphan with a mysterious connection to Voldemort, he now has a connection to the Beyonder. This alters his self - discovery journey. He's no longer just finding out about his role in the wizarding world against Voldemort, but also about his otherworldly heritage.
In this fanfiction concept, the original Harry Potter story is changed significantly. Firstly, the world - building aspect is affected. The demigod element brings in new mythologies and rules. Instead of just the wizarding world's magic, there are now demigod powers at play. Her character arc would also be different. She may have different goals and motivations as a demigod. For instance, she might be more concerned with her demigod heritage and fulfilling some demigod - related destiny, rather than just fighting Voldemort. This alteration to her character's focus can have a domino effect on the entire plot of the story.
Well, in the original story, Harry is not a millionaire. In fanfiction, his new wealth can change his relationships. For instance, some characters might befriend him just for his money. It also changes his power dynamics. He can now influence things more easily, like getting better equipment for Quidditch or funding the Dumbledore's Army more lavishly.
The concept changes the original story a great deal. Firstly, Harry's personality would be different. Instead of the kind - hearted boy we know, he might be more cynical due to IT's influence. Secondly, his relationships would change. His friends might be more wary of him. Also, the way he approaches magic could be altered. He may use magic in more unorthodox and perhaps darker ways.
Well, in the original story, the Dursleys are cruel to Harry. But in this fanfiction idea, it completely flips the dynamic. Harry would have a much more stable home life, which could mean he doesn't have the same sense of longing and isolation. For example, he might not be as eager to escape to Hogwarts every year.
It changes the story by expanding the scope of Harry's world. Instead of just Hogwarts and the UK wizarding world, he's now part of an international magical community. His values and beliefs are likely to be more diverse.