If Gandalf were at Hogwarts in a fanfic, he could also have some interesting interactions with the Hogwarts faculty. Dumbledore might be intrigued by his presence. They could exchange ideas about magic, leadership, and how to deal with the forces of evil. Gandalf's experience with Sauron could give Dumbledore new perspectives on Voldemort.
He'd probably be a bit of an enigma at Hogwarts. Gandalf has his own moral code and wisdom from Middle - earth. This could either clash or blend well with Hogwarts' values. Maybe he'd become a mentor to Harry and his friends, guiding them with his centuries - old knowledge.
Well, in such a fanfiction, Harry might grow up with a much different set of magical knowledge. Gandalf is from a very different magical world than the one in Harry Potter. He could teach Harry about more ancient and elemental magics. Harry might also become more of a wandering wizard, like Gandalf, rather than being tied to Hogwarts. He could be more involved in battles against large - scale dark forces from a very young age.
Well, it would be a very interesting scenario. Harry might learn some unique magic from Gandalf. His perspective on magic could expand greatly. He could gain new combat skills and strategies, and perhaps become even more powerful. Gandalf's wisdom would also influence Harry, making him a wiser wizard in dealing with the dark forces.
Well, if Hogwarts shuts down in a fanfic, it would change everything. There would be no Quidditch matches at the school, which is a big part of the students' lives. The different houses would lose their sense of community within the school walls. Also, the magical creatures in the Hogwarts grounds might be left without proper care. The students would have to rely more on their own resources and the knowledge they already have. It would be a very different world from the normal Hogwarts - centric stories we are used to.
He could fit in as a special guest lecturer. His knowledge of different magics would make his classes very popular. Students would be eager to learn from him, especially about his adventures in Middle - earth.
If Harry Potter meets Gandalf in fanfiction, it might be a situation where they team up to fight a common enemy. Gandalf's experience in dealing with dark forces like Sauron could give Harry some great strategies to deal with Voldemort. They could combine their powers, like Harry's Patronus charm and Gandalf's light magic, to drive away the darkness.
In the 'Harry Potter returns to Hogwarts' fanfic, he might reunite with old friends. Maybe he'll revisit his favorite spots in the castle like the Gryffindor common room. He could also share his post - Hogwarts adventures with the current students.
It would be a really interesting scenario. Maybe the characters in Hogwarts would get inspired by the fanfiction they read. For example, they could learn new spells or magical concepts from it. They might also be amused or confused by the different interpretations of their own world in the fanfiction.
If Harry Potter brings a gun to Hogwarts in fanfiction, it could change the whole dynamic of the story. For one thing, it would introduce a new level of danger that the magic at Hogwarts may not be able to counter easily. The other students would be both curious and afraid. And it might make the wizarding world re - evaluate their view of the Muggle world's weapons. It could also lead to some really interesting interactions between Harry and his friends. For example, Hermione would surely lecture him on the inappropriateness and potential harm of such a weapon in a magical environment.
In some fanfictions, muggles visiting Hogwarts might be a total chaos. They'd be shocked by all the magic around them. For example, seeing moving staircases or portraits that talk. The wizards would have to figure out how to keep them calm and also keep the wizarding world's secrets safe.
One possibility is that Harry's late arrival at Hogwarts could change the dynamics of the relationships he forms. For instance, instead of being in the same boat as the first - years from the start, he might end up befriending some older students who take him under their wing. Also, his late start could mean that he discovers parts of Hogwarts that others haven't yet, like secret passages or rooms that are only accessible to those who arrive late or are in a certain situation.