The character could develop in many ways. Firstly, in terms of physical abilities, he'd become stronger and more agile through training. Emotionally, he'd have to deal with the pressure of living in Batman's shadow. This could either make him resentful or drive him to prove himself. Socially, he'd be part of the Gotham elite's inner circle, which could give him influence. He could use this influence to promote positive change in Gotham, like starting youth programs to keep kids off the streets and away from crime. He'd also develop his own identity within the Bat - family, not just being known as 'Batman's little brother', but as a valuable member with his own skills and contributions.
The character could develop into a great detective. Living with Batman, he'd be exposed to all kinds of mysteries and crime - solving techniques. He could learn how to analyze evidence, read people, and follow leads.
It would be super exciting. You'd get to live in the cool Gotham City, be around all the high - tech gadgets and cool cars in the Batcave. Maybe you could even learn some cool fighting moves from Batman himself.
First, consider his relationship with Sunset Shimmer. If they have a close relationship, it could show in how he is always there to support her, or if they have a bit of a rivalry, that would shape his character differently. His hobbies are also important. If he loves sports, he might be competitive and energetic. Also, his past experiences, like if he had a tough time at a previous school, can greatly influence how he acts and reacts in different situations in the fanfiction.
To develop his character, consider his backstory. Maybe he had a tough time growing up because people always compared him to Ruby. This could have made him determined to be different. Also, think about how he interacts with other characters in the fanfiction world. If there are villains, does he try to reason with them first or jump straight into fighting? His actions will show his character. For example, if he's a compassionate person, he might try to understand the motives of the villains and help them reform if possible.
When Batman saves Superman, it could make him more confident in his own abilities outside of his normal Gotham - based operations. He realizes that his skills as a detective, strategist, and fighter are not just useful in his own city but can be applied on a much larger scale. This could lead to him being more involved in Justice League - related matters and having a more positive outlook on working with super - powered individuals in general. He might also become more empathetic as he gets to understand Superman's vulnerabilities better.
Batman becomes more empathetic. He has to consider the feelings and needs of the young heroes. He can't just be the lone, brooding detective. For example, he might be more open to their ideas during a mission.
In some Batman fanfiction, Harley Quinn may develop by realizing the toxicity of her relationship with the Joker. She starts to question her actions and motives, which leads her on a path of self - discovery. This often involves her having more interactions with Batman, who serves as a foil to the Joker's chaos.
Batman becomes more complex. He has to adapt to new threats in Gotham, which makes him grow as a hero. His relationships, especially with his sidekicks, evolve. For example, his bond with Robin might face new challenges.
He might be more confident from the start. In his past life, Harry grew up without his parents and had a difficult childhood. But as James' brother, he would grow up in a loving family environment. This could make him more outgoing and less hesitant in social situations.
Harry's character would develop with a stronger sense of family pride. He'd be part of the Potter family in a different way than before. He would grow up with a different set of values, influenced by James and his parents. He could be more adventurous, knowing that he has a support system. Also, his understanding of the wizarding world would be more in - depth from the start. He might not be as naive as he was in his original life when it comes to the darker aspects of the wizarding world, because he already has the knowledge of what can go wrong.
Batman's character would experience a significant transformation. Initially, he would be resistant to the idea of being Darkseid's advisor. However, as time goes on, he would adapt to the situation in order to survive. His moral compass would be severely tested as he would be forced to make decisions that go against his usual principles. He might become more calculating and less trusting of others, even his own allies. This new experience could also give him a deeper understanding of the cosmic threats that exist beyond Gotham, which could potentially change his approach to protecting the world once he manages to break free from Darkseid's grasp.