In some fanfiction, Snape's portrait could interact with other portraits in Hogwarts. For example, it may have a deep conversation with Dumbledore's portrait about the past events and how things could have been different. It would be a great exploration of their relationship from a new perspective.
One interesting story could be about Snape's portrait giving secret advice to a young wizard. It might use his past experiences to guide the youngster through the challenges at Hogwarts.
There might be a fanfiction where Snape's portrait has a special connection with a student who is an outcast, just like he was. The portrait could become a mentor to this student, helping them discover their hidden powers and overcome the bullying they face at school. This would not only show Snape's complex character but also the power of redemption and second chances.
One idea could be that Snape's portrait has the ability to communicate with the living not just in the castle, but also with those who were once his students far away. It could offer guidance to Harry Potter's children, sharing secrets about the past and how to handle the new threats in the wizarding world.
The portrait could be more open and less guarded. While the real Snape was often secretive and brooding, the portrait could be more forthcoming with his feelings. For example, he might openly express his pride in the students he once taught, especially those who have gone on to do great things in the wizarding world.
The topic of redemption could come up. Snape had a very complex moral journey, and Harry, who has his own understanding of right and wrong, might discuss with Snape's portrait whether Snape truly found redemption in the end. This would involve exploring Snape's actions, his motives, and how his sacrifices changed the course of the war against Voldemort.
In some fanfictions, Harry might seek Snape's advice on how to deal with the remaining dark magic threats. Since Snape was so knowledgeable, his portrait could offer unique insights.
In this fanfiction, Albus Severus might seek advice from Snape's portrait. Maybe Snape's portrait would offer him some wisdom about facing the challenges at Hogwarts, like dealing with the pressure of his name and family legacy.
In some fanfiction, Snape's portrait has the ability to possess or influence the living. This could be used for good, like helping a character perform a difficult spell, or for more devious reasons if the plot calls for it. It adds an interesting dynamic to the story as the living characters have to deal with this unexpected influence from the portrait.
One interesting story could be about how Snape's wife helps him heal from his past traumas. She might use her love and understanding to break through his tough exterior and get him to open up about his experiences at Hogwarts, especially his relationship with Lily.
Another great Snape's sister fanfiction idea is that she is an animagus. She could transform into a raven and spy on the Death Eaters for Dumbledore. Her relationship with Snape would be complex as she has to keep her activities hidden from him too, because Snape is still trying to play both sides at the time.
One idea could be exploring her early years in the Black family. Maybe show how she was influenced by the family's pure - blood mania and traditions. Another could be a fanfiction where she has a secret friendship with a non - pure - blood wizard, which she has to keep hidden due to family pressure.
One interesting Snape and Harry fanfiction could be one where Snape mentors Harry in a more private and less hostile way. They could bond over potions and Snape could finally see Harry as more than just James Potter's son.