I'm not entirely sure. Fanfiction can cover a huge range of ideas, and while time travel in Harry Potter is a common theme, and Orochimaru is a well - known character from Naruto. The combination seems a bit out there. But, if you search on some major fanfiction platforms like Archive of Our Own or FanFiction.net, you might be able to find out for sure if such a fanfiction exists.
There could be. Fanfiction writers often come up with the most creative and unexpected crossovers. Since both Harry Potter and Naruto have large fan bases, a 'Time Travel Harry Potter is Orochimaru' fanfiction might be out there. It could involve Harry traveling through time and somehow being related to Orochimaru, perhaps taking on some of his characteristics or abilities in a new and strange world created by the fanfic writer.
Well, it could be really wild. Maybe Harry, through some time - travel mishap, ends up in a world where he has the essence or some of the powers of Orochimaru. He might be able to use snake - like abilities, like Orochimaru can in Naruto. And the story could be about him trying to figure out how to get back to his own world while dealing with these new and strange powers.
Orochimaru's character would likely become more complex. He might start to question his past actions if he sees the consequences they had in the future. For example, if he travels back to a time when he was just starting his unethical experiments, he could see how those actions led to the destruction or harm of certain things in the future, and this could make him more hesitant or even try to change his ways. Also, if he meets important people from his past in a new light during time travel, like his old mentors or comrades, his view of relationships might change.
A great fanfiction idea could be that James Potter time - travels during a crucial battle in the wizarding world. He travels back to a time when the dark forces were just starting to rise. With his future knowledge, he could start preparing the wizarding community earlier. He could train young wizards and witches in advanced defensive magic, and try to change the course of history so that the big battle he left behind would have a different, more positive outcome.
Yes, there might be some interesting ones. You can start by looking on fanfiction websites like Archive of Our Own or FanFiction.net. Just search for 'Harry Potter Orochimaru' and you'll likely find a variety of stories. However, Orochimaru is from the Naruto universe and combining it with Harry Potter can be quite a unique and sometimes strange mix, so the quality might vary.
One possible way could be in a crossover fanfiction where the magic systems of the Harry Potter universe and the ninja world of Orochimaru are combined. For example, Orochimaru might be interested in the magic of the Harry Potter world and try to study it. Maybe he could see the magic there as a new source of power or knowledge. Another aspect could be a character - perhaps a wizard - being sent to the Naruto world and having an encounter with Orochimaru, and through that, a connection between the two universes is established.
One great older Harry Potter time travel fanfiction is 'The Time - Turner Conundrum'. In this story, Harry accidentally travels back in time much further than he intended. It's full of interesting twists as he has to deal with a Hogwarts that's very different from what he knows, and he has to figure out how to get back to his own time without changing history too much.
Another interesting fanfiction plot could be about a descendant of Salazar Slytherin who time - travels. They go back to the time of the Basilisk with the intention of taming it. They believe that the Basilisk was misused in the past and that they can change its fate. They might have to face many challenges, like the opposition from other wizards at that time who fear the Basilisk's power.
One possible fanfiction idea could be that a character discovers a time - traveling device while exploring the Chamber of Secrets where the Basilisk once lurked. They accidentally travel back in time to the era when the Basilisk was first created or when Salazar Slytherin was alive. This could lead to all sorts of adventures, like trying to prevent the Basilisk from being created or changing the course of Hogwarts' history regarding the Chamber.
One idea could be a Hufflepuff student discovers a time - turning device in the Hufflepuff common room. They decide to travel back in time to meet the founders of Hogwarts. They end up learning valuable lessons about loyalty from Helga Hufflepuff herself.
I also like 'A Second Chance at Life'. This fanfiction focuses on a character getting a chance to go back in time and correct their mistakes. It's a more emotional take on time travel in the Harry Potter universe. The author does a great job of exploring the character's feelings and how they deal with the knowledge of the future.