There's 'The Elder Naruto'. Here, Naruto's age gives him an edge in understanding the political situation in the ninja world earlier. When dealing with Itachi, who is still involved in his complex web of secrets, Naruto can approach the situation with a more mature perspective. He can start to unravel the truth about Itachi's actions and motives much quicker than in the original storyline.
It changes it significantly. Naruto being older might mean he doesn't idolize Itachi in the same way. He may see Itachi more as an equal or even a rival. For instance, instead of blindly following Itachi's lead in certain situations, he could offer his own solutions based on his more mature judgment.
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.
Well, if Naruto is older than Itachi in the fanfiction, it could lead to a role - reversal of sorts. Naruto might take on a more protective or mentoring role towards Itachi. He could use his experience and power, which he has gained over more years, to guide Itachi in a different way compared to the original storyline.
Typically, these fanfictions often focus on the unique dynamic between an older Naruto and a female Itachi. There's usually a strong emphasis on their relationship development, whether it be a friendship or something more romantic. For example, in many such stories, Naruto's maturity as an older character plays a big role in how he approaches the female Itachi.
There's also 'The Unseen Bond'. In this fanfiction, the female Itachi has a complex personality. The author does a great job of depicting how Naruto, now older, interacts with her. It shows their growth and how they support each other through various difficult situations in the story.
Well, in some fanfictions, Naruto might be shown as older by having him achieve higher ranks earlier. For example, he could become Hokage before Kakashi in the fan - made story. This would signify his more advanced position and potentially imply his older status in terms of experience and leadership.
Another theme is the power of love. It's often shown that their love can overcome the differences between their clans and the past grudges. They support each other in battles and in making important decisions for the ninja world. In some fanfictions, their love is what unites different factions in the shinobi world. A good example is when they use their combined influence to stop a war that was brewing due to old clan rivalries.
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 depends on the specific fanfic. Some fanfics might focus on Naruto's growth post - Shippuden and give him abilities that make him stronger than Itachi. For example, they could have Naruto master a new form of Sage Mode that gives him an edge over Itachi's Sharingan - based techniques. However, other fanfics might keep Itachi's power level relatively high and not have Naruto overtake him. So, there's a lot of variation among different fanfics.