Perhaps she has already had some experiences in the wizarding world before coming to Hogwarts due to her older age. This could lead to a plot where she is being hunted by dark forces even before she starts at Hogwarts. And her time at Hogwarts could be more about using the school as a base to fight back against those threats while also trying to keep her friends safe.
One possible plot development is that Naruto could be involved in the Uchiha clan affairs much earlier. Since he's older, he might have the power and influence to prevent the massacre. He could use his charisma and strength to broker peace between the Uchiha and the village leadership. Another development could be that Itachi becomes Naruto's apprentice of sorts. Naruto could teach Itachi some of his unique jutsu or ways of thinking that are different from the traditional Uchiha teachings.
One possible plot development could be that Harry tries to find a way to escape the marriage. She might use her magical skills and the help of her friends to break free from Voldemort's control. Another could be that she pretends to go along with the marriage while secretly planning to undermine Voldemort from within.
Well, if fem Harry is older, it might change her relationships a great deal. For example, in her friendship with Ron and Hermione. She could be more of a mentor figure to them rather than just a peer. Older fem Harry might have a more mature outlook, which could lead to some initial friction as her friends might not be used to this new dynamic.
One possible plot development could be how the wizarding world reacts to the loss of the so - called 'Chosen One' even as a baby. There might be widespread grief and fear among those who opposed Voldemort, as they had placed so many hopes on Harry. Another aspect could be how Voldemort's reign of terror continues without the threat of Harry Potter. He might become even more powerful and tyrannical, with no one to oppose him in the way Harry was prophesied to.
One possible plot development could be that his friends rally around him. They might search for rare potions or spells to heal him. For example, Hermione could be scouring the library for ancient healing magic while Ron stays by Harry's side, offering moral support.
One possible plot development could be that with Merlin's help, Harry discovers a new form of magic that was previously unknown. This new magic could then be used to defeat a powerful enemy.
One possible plot development could be that Harry kills Umbridge in self - defense. Maybe she attacks him first with the intent to harm or kill, and Harry has no choice but to use lethal magic in return. This would then lead to a huge uproar in the wizarding world, with some believing Harry was right and others seeing him as a murderer.
Naruto's age in the canon is based on the story arcs and the passage of time in the official Naruto universe. Fanfiction is a world of creativity where rules can be bent. Writers may choose to set Naruto at a younger age to explore different character dynamics or create new storylines. However, in the official, unmodified Naruto canon, he has a natural age progression that is older than what is often depicted in fanfiction.
Well, it could mean that in a particular context, the character Naruto in some non - canon fan - made stories is depicted as being younger, and the statement is emphasizing that in the original or more 'true - to - the - source' concept, Naruto is older. For example, some fanfictions might have time - travel or alternate universe scenarios where Naruto's age is manipulated in a way that makes him younger compared to how he is in the official, canon story.
She could become more confident in her new identity. Starting as Harry from a different world, she'd have to adapt to being a ninja and Naruto's sister. This new role would force her to step out of her comfort zone and grow. For example, she might have to learn physical combat skills which she didn't rely on as much in the wizarding world.