Perhaps they return and help Harry in his fight against the remaining dark forces. They bring with them old magic that was forgotten, which gives Harry an edge. Their return also has an emotional impact on Harry, making him more confident and less haunted by his past as he now has his family back.
One interesting plotline could be that Harry's parents return and have to adjust to the modern wizarding world. They might be shocked by the changes since their time, like new spells or magical devices. For example, they could be amazed at how easily wizards can communicate over long distances with things like the two - way mirrors that have been improved upon.
One possible plotline could be Harry trying to find out why his parents forgot him. Maybe he discovers a dark spell was cast on them. Another could be his journey to regain their memories, facing many challenges along the way.
In certain 'Harry Potter parents in stasis fanfiction', there could be a plot where the stasis was a form of protection. When they awake, they discover that there are still some Death Eaters who are after them. They then use their old skills and knowledge, combined with the new things they learn about the current wizarding world, to fight back. They also have an emotional journey as they reconnect with Harry and other friends and family they left behind.
One possible plotline could be that the main character discovers their real parents are actually powerful and long - lost wizards who were involved in some secret mission during the First Wizarding War. Maybe they were on the side of the Order of the Phoenix but had to go into hiding, and now the main character has to uncover their past and deal with the implications.
A third plotline might be that Harry is abandoned in a magical but hidden place. There, he is raised by magical creatures, say, a group of centaurs. They teach him their own brand of magic and wisdom. When he finally enters the wizarding world proper, he has a very different perspective on magic compared to the other students, which causes both admiration and some envy among his peers.
One possible plotline could be Harry growing up in an orphanage where he discovers some latent magic powers on his own before getting his Hogwarts letter. He might face more difficulties and prejudices from the muggles around him, which could make his entry into the wizarding world even more of a relief.
One common plotline could be the fem Harry Potter's journey of self - discovery. Since she's forgotten by her parents, she might have to rely on her own wits and newfound friendships more. For example, she could form a tight - knit group with outcast students and together they explore the secrets of Hogwarts that are often overlooked. Another plotline could be her struggle with her identity, as she doesn't have the typical family background to anchor her sense of self in the wizarding world. She may constantly question her place in the grand scheme of things and try to find out why her parents forgot her, which could lead to uncovering some dark secrets about her family or the wizarding community at large.
One plotline could be Harry finding a new family among his friends at Hogwarts. They become his support system and help him grow in ways his biological parents couldn't. Another could be Harry's journey to discover why his parents disowned him and uncovering some dark family secret along the way.
One possible plotline could be that Voldemort's attack on the Potter family fails in a different way. Maybe James uses a powerful, unknown spell that deflects Voldemort's killing curse. As a result, Lily and James go into hiding with Harry. They might then start to form an underground resistance against Voldemort, using their knowledge of the Dark Lord's weaknesses. This could lead to a completely different wizarding war, with the Potters at the forefront, and Harry growing up with his parents by his side, learning magic from them directly.
One interesting story could be that the portraits of Harry's parents start to interact with other portraits in Hogwarts in a very unusual way. They might form a sort of 'portrait alliance' to protect Harry even from within the frames. For example, they could pass on secret messages to Dumbledore's portrait which then gets relayed to the living world.
A plotline could involve them discovering new magical abilities or powers as a result of this trauma. It's possible that the emotional upheaval of being disowned unlocks latent magic within them. They could then use these new powers to not only better their own situation but also to help other outcasts in the wizarding world. Maybe they start a secret group for those who have been rejected by their families.