One common theme is the idea of changing the past. Since they are time traveling, there's often a temptation or need to change certain events. For example, in some stories, Albus might want to prevent some tragedy from happening to James and Lily. Another theme is self - discovery. By seeing their family members in a different time, they learn more about themselves and their family history.
There's also 'Time's Twist'. In this fanfiction, James accidentally gets sent back in time. He meets Lily before they were together and has to figure out how to get back to his own time while also not messing up the timeline that leads to his own existence. It's full of adventure and some really sweet moments between the characters.
One interesting plot could be that they travel back to the time of the Marauders. James and Lily could meet their parents when they were young and see how different Hogwarts was back then. They might get involved in some of the Marauders' pranks and also learn some secrets about their family's past that were long forgotten.
James might be very adventurous during the time travel. He would be eager to explore different time periods and get into all sorts of situations. His boldness could lead him to take risks that might either save the day or get them into trouble. For example, if they were in a dangerous situation in the past, he might be the first to jump into action without fully thinking it through.
James in fanfiction usually exhibits leadership qualities. He might lead his friends into some exciting but sometimes risky adventures. Albus can be a bit of an enigma. He may be quiet at times but is full of deep thoughts and is constantly trying to figure out his place in the wizarding world. Lily is portrayed as having a sharp mind and a kind heart. She can be a mediator between her brothers when they have disagreements, and she also shows great courage when faced with challenges.
One possible plot could be that James, Lily, and Albus travel back in time to the Marauder's era. They could interact with the young versions of their family members, like Sirius and Remus. Maybe they try to change some small events to prevent future tragedies without messing up the timeline too much.
James would have the opportunity to see his parents and how they were in their youth. This could make him more appreciative of his family heritage and the values they held. He might also learn from his father's mistakes or heroic deeds. Lily, seeing the past, could be inspired to fight for equality and justice in the wizarding world even more. She could use the knowledge of the past to make changes in the present. Albus would be like a sponge, soaking up all the knowledge and experiences. He could form strong bonds with the people they meet in the past, which would influence his character development. His view of the world would expand, and he might come back to his own time with a new set of skills and a more developed moral compass.
I really like the fanfiction titled 'James, Albus, and Lily: A New Generation'. It shows how they carry on the Potter family legacy while also forging their own paths. It has interesting plot twists and a great deal of character development, especially in how they interact with their friends and deal with the pressures of being Potters.
One great James and Lily Potter time travel fanfiction is 'Back to the Beginning'. It shows their journey back in time and how they interact with their past selves. It has a great plot with lots of emotional moments.
One possible plot could be that James Albus and Lily Potter are facing a new mystery at Hogwarts. Maybe they discover a hidden chamber that no one has found before and inside it are secrets about their family's past at Hogwarts. They then have to figure out how to deal with these revelations while also keeping up with their studies and normal Hogwarts life.