Alphonse Elric is often present. He might play a role in helping Edward understand and use his new gamer - like abilities in relation to alchemy. For example, he could be the one who discovers a new aspect of Edward's powers.
Edward might meet his parents. Since he has the chance to go back in time, he could meet them when they were alive and perhaps learn more about alchemy from them, which could change his future actions.
Yes, there are likely fanfictions out there with such a concept. The worlds of Naruto and Fullmetal Alchemist, where Edward Elric comes from, are quite different, but that's what makes the idea of a crossover in fanfiction so interesting. Writers might explore how Naruto's ninja world and its unique powers could interact with Edward's alchemical abilities and the complex world of Amestris.
One great fanfiction could be 'The Road to Recovery'. In this, Edward's injury is not just physical but also psychological. The author delves deep into how he copes with the pain and his journey to regain his strength. Another one is 'Injured but Unbroken' which focuses on his relationships with his friends and how they support him during his time of injury.
Edward's intelligence. He is a brilliant alchemist. A fanfic could explore how he shares his knowledge with the reader, perhaps teaching the reader alchemy. This could lead to some really interesting adventures where they use alchemy to solve problems in their world. And the reader could also bring out a different side of Edward as he gets closer to someone who is not as experienced in alchemy as he is.
In fanfiction, the possibilities are nearly endless. Regarding Edward Elric becoming a homunculus, it could be a very interesting concept. If he were to become one, it would completely change his relationship with other characters. For example, his brother Alphonse might react in a very different way. Also, Edward's own view of himself and his abilities would be transformed. His struggle with his new form, if it were to happen, could be a central theme in the fanfiction. Maybe he would try to find a way to reverse the process, or perhaps he would embrace his new existence as a homunculus. It all depends on the creativity of the fanfiction author.
Some fanfics to check out are 'Brotherly Love in Amestris'. This one takes a more in - depth look at their relationship within the context of the Amestris world. It shows how their love for each other is a driving force. 'The Elric Brothers' Growth' is also a good read. It follows their development as individuals and as a duo. It shows how they grow together and learn from each other. Also, 'Edward and Alphonse: A Bond Beyond Alchemy' is interesting as it explores their relationship outside of the typical alchemy - related events.
Well, perhaps in the fanfiction, Edward is kidnapped by a secret organization that wants to use his knowledge of the military's alchemical operations. They might hold him captive in an underground lair, filled with strange alchemical contraptions. Or maybe he's kidnapped by a jealous alchemist who feels overshadowed by Edward's fame. This alchemist could try to steal Edward's research and take credit for his work. Also, it could be that an otherworldly being kidnaps him to learn about human alchemy.
One possible plotline could be Edward trying to adapt to the German culture. He might struggle with the language at first but gradually learn it. Maybe he gets involved in some sort of alchemy - related mystery in Germany that is different from what he's used to in his home world. He could meet new characters who either help or hinder his attempts to understand this new place and its secrets.
Well, a plot could involve Edward being betrayed by a mentor figure. This person could have been guiding him in alchemy all along but has a hidden agenda. Maybe they want to use Edward's unique alchemical abilities for their own dark experiments. Or, in a different scenario, Edward could be betrayed by a love interest. She might pretend to love him while actually spying on him for an opposing force, stealing his secrets and leaving him heartbroken and in a difficult situation.