Another approach would be to set it in a post - apocalyptic version of the Harry Potter world where the Terminators have already taken over most of the Muggle world. The wizards are the last hope. They would need to combine their knowledge of magic with any remaining Muggle technology they can find. Harry and his friends could train a group of young wizards to be like a wizard - Terminator hybrid fighting force. There would be a lot of scope for character development and exciting battles as they try to reclaim their world from the Terminators.
One way could be to start with Harry finding a book about Smaug in the Hogwarts library. He becomes so intrigued that he starts to have dreams about the dragon. Then, as the story progresses, he might use his magic to create a portal to the world where Smaug exists and tries to communicate with him.
To write such fanfiction, you could start by creating a crossover point. Maybe a portal opens between the Kryptonian world and the wizarding world. Then, characters from both sides start to interact. A Kryptonian could be amazed by magic and try to learn it, while wizards could be in awe of the Kryptonian's raw power. You'd have to balance the two different power systems and cultures so that the story makes sense.
Yes, it is a rather novel concept. It could mean that someone has created a fan - made story where the world of Harry Potter intersects with the Terminator universe. For example, perhaps the Dementors could be seen as a bit like the Terminators in some ways, with their cold and relentless pursuit of their prey.
One way could be to give Harry a more mysterious and aloof side like Tobi. Maybe he starts using illusions or misdirection in battles at Hogwarts, similar to how Tobi uses his Sharingan abilities. He could also adopt Tobi's habit of speaking in riddles, making his classmates and teachers wonder what he's really thinking.
You could write it by making Harry a chosen one in the Greek god world too. Maybe he has to stop an evil force that threatens both the wizarding world and the world of the Greek gods. He could get help from the Greek heroes like Hercules and use his magic to assist them in battles.
In a Naruto becomes a Terminator fanfiction, it could start with some sort of time - travel or interdimensional rift. Maybe a jutsu gone wrong sends Naruto to a world where the Terminator technology exists. Then, Naruto, with his ninja skills and strong will, might adapt to the new environment. He could use his chakra in unique ways combined with the advanced weaponry of the Terminator world.
In theory, it is possible in fanfiction. One way could be through time - travel magic. Harry could discover a powerful time - turning spell that allows him to go back in time to the moment before his parents' deaths. He would then use his skills and knowledge from his own time to fight off Voldemort and save them. For example, he might use advanced defensive spells he learned at Hogwarts to counter Voldemort's attacks.
To write such a fanfiction, first, establish a connection between the two universes. Since Pepper Potts is from a world of technology and Harry Potter from a world of magic, the lemon could be the key. Let's say there's a lemon - scented charm in the wizarding world that has an unexpected effect on Pepper when she somehow gets transported there. Then, build a story around how she adapts to the magical world with the help of Harry and his friends, all while the lemon - related element keeps popping up as a reminder of the strange crossover.
One challenge could be the physical aspect. Since she is a machine, her body is not designed for pregnancy. There could be issues like her systems overheating or malfunctioning due to the extra 'load' of the pregnancy - like her power cells not being able to supply enough energy. Also, her mechanical parts might not be able to adjust to the physical changes that come with pregnancy in a human body, like the expansion of the abdomen.
Perhaps in a fanfiction, Harry could sacrifice himself to save the entire wizarding world one last time. He might face an army of dark creatures alone and knowingly walk into a situation where death is certain, like a modern - day hero's self - sacrifice.