Snape's loyalty might shift or expand. Originally, his loyalty was mainly to himself and later to Dumbledore. But in fanfictions where he's part of the Marauders, he may develop a new loyalty to this group. This could lead to him being more involved in their antics and causes, and he might even start to protect them in ways he never thought he would, changing his overall character arc from a solitary figure to a more group - oriented one.
Snape's character often becomes more open - minded. In many such fanfictions, being around the Marauders, who are generally more carefree and adventurous, forces Snape out of his shell. He starts to see things from different perspectives, rather than just being the brooding loner he was originally.
In these fanfictions, Snape often becomes more self - reflective. He starts to realize the full extent of his actions and how they've affected others. For example, he might come to see how his treatment of Harry was unfair. He also becomes more open about his emotions, which was something he always hid before.
Snape's character changes in his relationship with others too. He becomes more involved with the Hogwarts community as he is now responsible for Harry. He might start to collaborate more with other teachers, like McGonagall, who he previously had a rather cold relationship with. His attitude towards the students also changes as he realizes that they are just kids trying to find their way, much like Harry. This is a big shift from his usual strict and often unforgiving self.
In terms of appearance, a female Snape would look different, of course. But more importantly, her self - confidence might be presented in a different way. A female Snape could use her appearance and charm in a way that the male Snape never did, to manipulate situations or gain allies, which would be a significant change from the original character.
In some fanfictions, Severus Snape's character develops by becoming more open - minded towards Muggles. He might start off with his typical wizarding - world prejudices, but through various interactions, he begins to see Muggles in a new light. For example, he could meet a Muggle scientist whose thirst for knowledge reminds him of his own love for potions, and this changes his view.
She could also be more perceptive of social hierarchies in a different way. Girls in the wizarding world might be subject to different expectations. Snape as a girl might use her femininity to her advantage, perhaps by being more charming or manipulative in certain situations to get what she wants, which is different from the male Snape's more brooding and solitary approach.
The re - imagining of Snape as trans in fanfiction can also play with the idea of how magic could interact with his gender identity. For instance, could there be spells or potions that are more difficult for him to use because of his trans identity? Or perhaps there are magical ways to help him transition that are unique to the wizarding world. His role as a Potions master could also be tied into this, like creating new potions related to gender transition or using his knowledge to help other trans wizards in the fic.
Snape's character could become more calculating and cold - hearted. Tom Riddle is not exactly a nurturing figure, and being raised by him would expose Snape to a world of power - seeking and self - interest. Snape may lose some of his capacity for love and affection that he had for Lily in the original story. He would be more focused on achieving power and status within Riddle's regime. His relationships with other characters would be more transactional. For instance, he would not form the same kind of complex relationship with Narcissa Malfoy as he did in the original story because his priorities would be different, being centered around Riddle's goals rather than his own personal loyalties and emotions.
Snape's character in 'Snape in love' fanfics can transform significantly. He might start to open up more, sharing parts of himself that he has long kept hidden. Love can make him more empathetic towards others, especially the object of his affection. He may also become more willing to take risks, whether it's in terms of his personal relationships or his standing in the wizarding world.
Snape's character development in these fanfictions is quite interesting. At first, he might be helping Harry out of a sense of obligation to Lily. But as time goes on, he starts to form a unique bond with Harry. His interactions with Harry force him to confront his own prejudices and grudges. He becomes more empathetic towards Harry's situation, which is a big change from his initial coldness. For example, in some stories, he begins to understand Harry's loneliness and tries to offer some form of companionship, which is a huge step for a character like Snape.
In these fanfictions, Snape's character often develops from a seemingly cold and unfeeling person to someone with more depth. When he saves Harry, it starts to chip away at his facade. For example, he might initially save Harry out of obligation but as time goes on, he realizes he has a genuine care for the boy. This is different from his canon behavior where his feelings are mostly hidden.