Well, it's interesting to think that Peggy's upbringing of Tony could make him more of a team player from the start. He might be more inclined to work with SHIELD directly and share his technology more openly. This could lead to a much stronger and unified front against threats, and a completely different set of events in the Marvel universe. There could be a different dynamic between him and characters like Captain America too, since he would have been influenced by Peggy, who has a special connection with Steve.
Tony would probably be more reserved and less flamboyant. Peggy is a very composed and serious person, so her influence might make Tony tone down his more ostentatious tendencies.
He would be more disciplined. Peggy Carter was a no - nonsense person, so Tony would likely grow up with a strong sense of order and responsibility. He might not be as reckless as he was in the original story. His genius would still be there, but it would be channeled in a more focused way, perhaps towards more strategic and patriotic inventions rather than just for the sake of innovation.
One interesting plot twist could be that Tony discovers an unknown power of the Infinity Stones that even Thanos was unaware of. Maybe it's a power that can reverse time not just for a single person but for an entire planet. This would completely change the power dynamics in the story.
If Tony Stark were raised by Peggy Carter in fanfiction, it could drastically change the MCU timeline. For starters, Tony's personality might be different. Peggy was a strong - willed and disciplined person. Growing up under her influence, Tony might be more by - the - book and less of a maverick. His approach to technology could also be different. He might focus more on military applications that align with Peggy's values rather than the more commercial and sometimes unethical applications he pursued in the original timeline. Also, his relationship with Howard Stark would be complex. Instead of the distant and often troubled relationship they had, it could be one of mentorship from Peggy's perspective, with Howard having a different role in Tony's life.
One popular plot twist could be Percy developing a special power related to the moon because of Artemis's influence. For example, he might be able to control the tides in a new way that's connected to lunar phases. Another could be Percy having to choose between the world of the hunters and his old life. This creates a lot of internal conflict as he has loyalty to both. A third might be that Artemis reveals a secret prophecy about Percy that changes his whole view of his destiny.
One interesting plot twist could be that Naruto's friends initially think he's been possessed by an evil force and try to stop him, but later find out that he's actually the key to saving the world from a greater, hidden threat related to Sauron's power. Another twist could be that the Akatsuki are somehow connected to Sauron's minions from Middle - earth, and Naruto has to team up with some unlikely allies to defeat them.
One possible plot twist could be that the goblins have their own motives for raising Harry. Maybe they see him as a key to some hidden treasure or power. They could be training him in secret goblin magic that no human wizard knows about.
One possible plot could be that Tony grows up in a world still influenced by Peggy's legacy. He might inherit her tenacity and intelligence. He could be involved in high - tech projects earlier, perhaps with some of Peggy's old colleagues guiding him. And he might use his skills to uncover secrets that Peggy had left behind, secrets that could change the course of the world.
One popular plot twist could be that Ash discovers he has a special power given to him by the Legendary Pokemon that raised him. For example, he might be able to communicate with all Pokemon telepathically. Another could be that the Legendary Pokemon that raised him is in danger, and Ash has to use his unique bond with it to save it from an evil organization. And sometimes, there's a twist where Ash's real family is somehow connected to the Legendary Pokemon world, and his upbringing by the Legendary Pokemon was part of a bigger plan to reunite his family.
One interesting plot twist could be that Naruto actually has a hidden power that is the key to Hagoromo's own power development. Maybe Hagoromo has been struggling with something in his power growth, and Naruto's presence unlocks it. Another could be that Naruto is from the future, and his knowledge of future events causes a huge shift in the way things are supposed to happen in Hagoromo's time.