It might have a more modern exterior. While shops in the wizarding world in England often have a traditional and somewhat old - fashioned look, in New York, his shop could blend in with the modern architecture a bit more.
The way of doing business could be different. New York is a big and busy city. Harry might need to use more modern marketing techniques. For example, instead of just relying on word - of - mouth like in the wizarding world in England, he could use magical versions of advertisements in newspapers or on billboards to attract customers.
The wizarding world would be far more primitive. There might not be organized schools like Hogwarts. Instead, magic would be passed down through families or small groups. Harry would be part of a more superstitious society where magic and non - magic were not as clearly divided as in modern times. His role could be to bridge the gap between different magical factions, as his unique powers might be seen as a way to unify the various groups in the face of common threats like marauding magical beasts.
His spell - casting could be seen as a new form of jutsu. For example, the levitation charm could be used like a basic ninjutsu for moving objects around during a mission.
It expands the wizarding world by introducing new magical creatures. Fanfiction often includes creatures that were not in the original books, which can inhabit new areas of the wizarding world. For example, some fanfictions might have underwater magical creatures with their own unique magics. This forces the wizards in the story to interact with different ecosystems. Another way is through new forms of magic education. Instead of just Hogwarts - style teaching, fanfiction can show different schools or methods of teaching magic, like a school that focuses solely on defensive magic and has its own set of spells and techniques.
Her combat skills might translate into being a good Pokemon trainer. She's used to dueling, so she could quickly pick up on battle strategies in Pokemon battles. For instance, she could use her quick - thinking ability from wizard duels to decide which Pokemon to send out and when to use different moves.
His friends would be deeply saddened. Hermione, for instance, would probably feel like she's lost a part of herself. She and Harry have been through so much together. Ron would also be heartbroken as Harry is like a brother to him. They might try to convince Harry to stay at first.
Harry would need to learn about the different magical laws in America. For instance, the regulations regarding magical creatures might be stricter or more lenient compared to the UK. He might also have to get used to the different currency used in the American wizarding economy.
The wizarding world would likely be very different. Magic might have evolved in ways that are unrecognizable. Harry, being 500 years old, would have witnessed these changes. There could be new forms of magic, new magical creatures, and different social structures. For example, the Ministry of Magic might have transformed into something entirely new, perhaps more of a democratic council where all magical beings have a say.
If Harry invented spells like 'Teleporto Instanto', which allows for instant teleportation anywhere in the wizarding world, it would completely revolutionize travel. People could go from Hogwarts to Diagon Alley in a blink. It would also change the way battles are fought as wizards could quickly escape or surprise their enemies.
They may gain a deeper understanding of how the outside world perceives their world. Fanfiction often reflects the hopes, dreams, and fears that fans have about the wizarding world. So, by reading it, the Potter family can get a sense of what others find interesting or concerning about their world. For instance, if a lot of fanfiction focuses on the social inequalities in the wizarding world, it might make them more aware of these issues and perhaps even inspire them to do something about it.
The Order of the Phoenix would immediately spring into action. They would start searching for Harry using all their magical resources, including spells like the Tracking Charm. Dumbledore would likely be at the forefront, using his vast knowledge and connections to try and figure out where Loki has taken Harry.