Harry could face the problem of balancing his knowledge from the future and not revealing too much. There could also be issues with dealing with younger versions of his friends and enemies. And, of course, he'd have to navigate the magical world of the second year without raising too many suspicions.
Well, there could be a number of challenges. For instance, he might struggle with memories or expectations from the previous year. Also, there could be new magical obstacles or interpersonal conflicts with classmates or teachers that weren't there before.
One challenge could be not being able to change things as easily as he thinks. Time might have its own rules. Another is that he might accidentally change something that has a much worse consequence later.
He might face a profound sense of loneliness and the burden of being the sole survivor. Also, he could encounter new magical threats that emerged after the universe's collapse.
He'd face a lot of challenges. For one, communication would be a big problem. Wizards communicate verbally, and as a raptor, he can't speak. So getting his ideas across to others would be difficult. Also, he might be seen as a strange or dangerous creature in the wizarding world. He could be hunted or locked up if people don't recognize him as Harry Potter. And he'd have to figure out how to use his magical abilities, if any, in this new form.
He might face challenges in terms of curriculum development. There would be pressure to update the courses to keep up with the changing times in the wizarding world. Additionally, he would need to handle the security threats that still lurk, such as the remaining Death Eaters or new dark forces. He has to protect the students and the school's secrets while also allowing for a free and open learning environment.
One challenge would be the goblins. They are very protective of Gringotts and would not easily give up control. They have their own laws and traditions regarding ownership. Harry would have to deal with their resistance and find a way to convince them or negotiate with them.
He'd face opposition from the wizarding community. They might not understand his choice to leave behind the world of magic for a religious life. His friends like Hermione and Ron would also be confused and try to talk him out of it.
One challenge would be the secrecy. In the wizarding world, there are different rules about secrecy, but the Kingsman operate on their own strict code. Harry would have to be extra careful not to accidentally expose magic in front of his new colleagues. Another challenge is the technology. He's used to magic wands and potions, not high - tech guns and gadgets. Learning to use them proficiently would take time.
One challenge would be making friends. The students at Mahoutokoro might have different values and social norms compared to Hogwarts. He might find it difficult to fit in and find a group he belongs to. Additionally, the academic system could be very different. The grading system, the types of courses, and the way knowledge is imparted could all pose difficulties for Harry.
One challenge could be dealing with the traditionalists among the staff and some of the older families in the wizarding world. They might resist his new ideas and reforms. Another would be maintaining a balance between discipline and freedom for the students.