Well, he could discover that Voldemort's legacy has had a strange impact on the future. Maybe there are still some dark wizards trying to revive his ideas, or on the other hand, his defeat led to a completely different kind of society. Harry might also meet versions of himself from alternate timelines in the future, which would be a really mind - boggling experience.
In this fanfiction, Harry might see a world where magic has evolved in unexpected ways. For example, there could be new spells that are far more powerful and complex than the ones he knew. He could also find that Hogwarts has changed, perhaps with new buildings or different teaching methods. And maybe he would encounter descendants of his friends, who have their own unique stories to tell.
One possibility is that Harry would be shocked to find that the wizarding world has integrated more with the Muggle world than ever before. There could be new forms of magic - Muggle technology hybrids. He might also see that the old Houses at Hogwarts have less significance, and instead there are new groupings based on different magical abilities. And the role of the Ministry of Magic could have changed drastically, either for better or for worse.
He could meet his future children, if he has any. They would likely be powerful wizards or witches with their own adventures. Also, he might run into the future versions of Hermione and Ron. They would probably be in important positions in the wizarding world, like Hermione might be a headmistress at Hogwarts or something.
Well, they could have all sorts of adventures. Maybe they'd visit different magical and alien worlds. The Doctor could show Harry some truly out - of - this - world places that even the wizarding world hasn't seen. And Harry could introduce the Doctor to the magic of Hogwarts, like the secret passages and the magic spells.
Well, he might be shocked by how things turn out. He could see the fates of his friends, like whether Ron and Hermione's relationship endures. Maybe he'd find out if Hogwarts still stands strong or if there are new threats to the wizarding world that he hadn't anticipated.
In this fanfiction, Harry Potter visiting the future would be a wild adventure. He might discover that some of the old magical artifacts he knew have new uses or powers. He could also encounter threats that are different from what he faced in his own time. For example, there could be a new dark wizard or a group of dark wizards who have found a way to use modern technology combined with magic in a dangerous way. And his own legacy in the future could be a big part of the story. People might see him as a great hero or there could be some who misinterpret his actions from the past. Harry would have to navigate this new world while still holding onto his own values and experiences from his time at Hogwarts and during his battles against Voldemort.
Perhaps he would find that the wizarding world has finally united with the Muggle world in harmony. Technology in the Muggle world could have influenced magic in strange and wonderful ways. He could be shocked to see flying cars that are now common, or houses that are built with a combination of magic and advanced Muggle construction techniques.
Well, if Naruto travels to the future in fanfiction, he may encounter his descendants or versions of his friends that have changed a great deal. Maybe he would find that Konoha has evolved into a super - high - tech ninja village. He would need to learn about the new political situations, new enemies, and new ways of being a ninja. For example, he might have to deal with ninjas who can control artificial intelligence as their weapons. He would be confused at first but then use his determination and strong will to figure things out.
Well, he might be shocked by the advanced technology. Maybe he'll see flying cars and buildings that touch the sky. He could also encounter new forms of the Force that he doesn't understand. And perhaps he'll meet descendants of his friends or foes, which would be really interesting.
Sasuke traveling to the future in the fanfiction would be full of possibilities. He could find that the traditional ninja clans have evolved into something completely different. For example, the Uchiha clan may have developed new and unique powers that are a combination of their Sharingan heritage and future technology. He may also meet versions of himself from different timelines, which would create a very complex and mind - boggling situation as he tries to figure out his place in this new future.
In this fanfiction, Aang might encounter advanced bending techniques. Since he's traveling to the future, he could see how bending has evolved over time. Maybe there are new forms of bending that combine different elements in ways he never thought possible.
He might encounter advanced technologies that he has no idea how to operate. For example, in some future settings, there could be flying cars or instant teleportation devices. Dean would be both amazed and confused, trying to figure out how these things work.