Well, in some Lily Potter Returns fanfiction, there might be a plot where she has to face an old enemy that was thought to be defeated. This could involve her using her old skills and learning new ones to combat the threat. Also, she could be involved in mentoring young witches and wizards, passing on her knowledge from her own time.
One interesting plotline could be Lily Potter's adjustment to the new era she returns to. Maybe she has to deal with new magical technologies and social changes. Another could be her reuniting with old friends and family, like Harry, and how their relationships evolve.
One interesting plotline could be Harry Potter's return to Hogwarts as a teacher. He could pass on his knowledge and experiences to the new generation of students. Another might be his return to the wizarding world after a long absence and having to deal with new threats that have emerged in his time away.
One common plotline is time - travel. For example, Harry might go back in time and interact with Lily Potter in a way that changes the course of events. Another could be an alternate universe where Lily survives and she and Harry have a different kind of relationship, perhaps more of a mentoring one.
There could also be a plotline where their pregnancy is put in danger. Maybe there are dark forces at work in the wizarding world that target them because of their unborn child. This can create a lot of tension and drama, as they have to fight to protect their family. It can also be a way to explore the darker side of the Harry Potter universe and how Lily and James would handle such threats while being pregnant.
One interesting plotline is when Lily is given the chance to change the future. In some fanfictions, she has the power to go back in time and make different choices, like whether to marry James or not. Another is when she discovers hidden magic within herself that no one else knew about. This often leads to her having to face new challenges and enemies.
One interesting plotline could be exploring their relationship in their early Hogwarts days more in - depth. Maybe showing how Severus first fell in love with Lily and the little moments they shared in the library or on the grounds. Another could be a what - if scenario where Lily didn't end up with James and Severus had a chance to rekindle their friendship and perhaps more. A third could be a story from Severus' perspective after Lily's death, how his memories of her still haunted and drove him in his actions within the wizarding world.
One possible plotline could be that James and Lily return and have to deal with the changed wizarding world. They might be shocked at how much Voldemort's actions have affected society even after his defeat. Another could be that they return to help Harry face new threats that are emerging from the shadows of the old war.
In Lily Potter Returns fanfiction, Sirius Black can be a character paired with her. They were friends in the past, and now that she's back, their friendship could be deepened or turned into something more complex. Additionally, Remus Lupin might be included in stories, as he was part of their group, and his interactions with Lily can add an interesting dynamic.
A common plotline is Lily Luna Potter finding a hidden part of Hogwarts that was unknown to her father. This could involve her exploring an old chamber and discovering secrets about the founders of the school. It's a great way to expand on the existing Harry Potter lore without any adult themes.
A great plotline might be Snape teaching Lily Luna Potter some of his signature potions in a private tutoring session. Through these interactions, they develop a unique bond. Or perhaps Lily Luna Potter gets into a dangerous situation, and Snape is the only one who can save her because of his in - depth knowledge of the dark arts. This would create a scenario where she has to trust him completely, despite his often - misunderstood reputation.
One interesting plotline could be a story where Lily survives Voldemort's attack. In this scenario, she has to deal with the aftermath and also raise Harry in a very different wizarding world. Her relationship with Harry would be more of a traditional mother - son relationship, but with the added complexity of the wizarding world's politics and the threat of Voldemort still looming. This would allow for a lot of character development for both of them.