Luna Lovegood's descendants might carry on her unique way of thinking. They could be the ones to discover new magical realms or concepts that others overlook because of their unconventional thinking. Draco Malfoy's family, if redeemed in the future, could have members who are more inclusive and less prejudiced. Their personalities would have evolved from the once - proud and sometimes cruel Malfoy lineage to be more empathetic and understanding in the face of a changing wizarding world.
Harry could become even more of a wise and respected figure. His experiences with Voldemort would have made him a great teacher or mentor in the future, passing on his knowledge of dark magic and how to combat it. Hermione might be more experimental with magic, using her intelligence to break new boundaries in magical research. Ron could be more confident and a great support to Harry in his new role.
Their kids' personalities could be a mix of Marco and Star. They might inherit Star's boldness and Marco's determination. So they would be fearless when facing challenges and not give up easily.
Dudley could develop magical abilities in fanfiction, which would completely change his character. He'd no longer be just the bully from Privet Drive. Snape would have to adapt his teaching methods to Dudley's unique situation. Instead of his usual coldness, Snape might show more patience with Dudley as he is not as closely associated with James Potter as Harry is. This could also lead to Dudley standing up for Harry against some of the wizarding world's prejudices, as he now has a new - found understanding of what it's like to be different.
Kristoff, in the future he watches, might become more refined and diplomatic. If he sees himself as part of the Arendelle court in the future, he would have to learn to interact with nobles and other royalty. He would start to pick up on social graces and political savvy, which would gradually change his rough - around - the - edges personality in the present as he prepares for that future role.
Perhaps some new students from different magical cultures. As the wizarding world expands in the future in fanfiction, students from far - flung magical communities come to Hogwarts. They could bring their own unique magic and customs, and interact with the legacy of Harry Potter in interesting ways.
Meg from Family Guy is often the outcast. In a Harry Potter - inspired setting, she could be a Squib who discovers she has some unique magical ability that has been overlooked. She could then struggle to find her place among the magical community, much like she does in her own family in Family Guy. This would give her a chance to shine and develop her character in new ways.
For Harry Potter in a neglect fanfiction, his development could be quite a journey. He may initially feel angry and confused as to why he is being overlooked. This could lead him to be more rebellious or to try to prove himself in different ways. With Elsa, she would be in a state of self - pity at first. But as time passes, she realizes that her powers are still a part of her, regardless of what others think. Harry and Elsa together could form a support system. They would encourage each other to break free from the shackles of neglect. Harry could use his quick thinking and magical knowledge, and Elsa could use her grace and ice - creating abilities. As they grow together, they might even find a way to change the perception of those who are neglecting them.
Harry would likely become more complex. He might start to have a darker edge to his personality as he is exposed to the occultist's ways. Hermione and Ron would be very concerned about him. They might try to rescue him from the occultist. Hermione could become more determined to study about the occult to understand what Harry is going through.
Well, for Harry, he'd develop a deeper understanding of different kinds of magic and people. Since Tsuna comes from a different background, Harry would have to adapt his teaching methods. This would make him more flexible. Tsuna would start to develop a more adventurous spirit. He'd be more willing to take risks as he sees Harry's courage. Also, in terms of their relationship, they'd go from being strangers to a family - like unit. Tsuna would look up to Harry, and Harry would feel a need to protect Tsuna at all costs. This would shape their personalities in different ways, with Harry becoming more protective and Tsuna more trusting.
Ichigo might become more cautious. Usually he's quite impulsive, but seeing the future could make him think twice before acting. He doesn't want to mess things up more than they already might be in the future he saw.
He'd first have to get used to the new technology. If there are new magical devices, he'd need to learn how to use them. For instance, if there are advanced wands with extra functions, it would take him some time to figure them out.