Another plot could be that they are sent randomly to different points in time. Anakin ends up in a time where the Jedi are at their peak, and he learns from the great Jedi Masters there. Padme lands in a time of great peace and political stability and studies how they achieved it. Luke and Leia are separated, with Luke in a time of great technological advancements and Leia in a time of intense diplomatic negotiations. They then reunite and use their combined knowledge to improve their own time.
One possible plot could be that Anakin, Padme, Luke and Leia are sent back in time to the Clone Wars era. Anakin could have the chance to prevent his fall to the dark side, with Padme by his side to support him. Luke and Leia would be there to help their father, using the knowledge they have from the future. They could change the course of the war and save many lives, while also ensuring the Sith don't gain so much power.
In this kind of fanfic, a lot could happen. Maybe Anakin could use time travel to prevent his fall to the dark side. He might go back and make different choices, which would then change the entire future for Luke and Leia. Padme could also be involved in this time - traveling adventure. For example, she could use her knowledge of future events to try and save the Republic in a more effective way. And Luke and Leia, they might end up traveling through time as well to learn more about their parents' past and the history of the Jedi and Sith.
Maybe in the fanfic, Padme discovers a time - travel device and decides to use it to go back in time to when Anakin was still a young Jedi. She hopes to change the course of his life and prevent his turn to the dark side. Luke and Leia, sensing something is wrong with the timeline, follow her. Once there, they have to navigate the complex politics and relationships of that era while also trying to keep their true identities a secret. This could lead to all sorts of interesting interactions and plot twists.
In a time - travel scenario, Anakin and Luke's relationship could be transformed. Luke could finally understand his father's struggles more intimately by being present in the past. Padme and Leia might form a stronger bond as well, with Padme being able to mentor Leia in ways she couldn't before. Their relationships would be shaped by the new shared experiences in different time periods and the knowledge they gain from those travels.
One idea could be a time - travel plot where Luke and Leia are sent back in time and meet their parents, Anakin and Padme, before Anakin's fall to the dark side. They try to prevent the events that led to the rise of the Empire.
Here's another idea. Suppose there's a threat to the galaxy that can only be stopped by using a long - lost technique that Padme knew about. Luke and Leia, with the help of Anakin's spirit, embark on a quest to find out about this technique. They face many challenges, including political intrigue and dark side threats, all while coming to terms with their family's complex history.
They could time travel to a parallel universe where the roles are reversed. In this universe, Luke is a Sith, Leia is a bounty hunter, and Han is a political leader. They are shocked by these changes but soon realize that they need to find a way back to their own universe. Along the way, they learn about the different choices that led to these alternate identities. Luke sees how easy it was for him to turn to the dark side in this universe, which makes him more determined to stay on the path of the light in his own world.
One possible fanfic could be about Anakin using time travel to prevent the fall of the Jedi Order and save Padame. He could then ensure a better future for Luke and Leia, guiding them in the ways of the Force without the dark shadow of the Empire looming over them.
Perhaps it's a time - travel scenario in the fanfiction. Luke and Leia, having discovered a way to travel back in time, meet their parents. Anakin would be shocked to see his grown - up children, and Padme would be in awe of the strong Jedi and princess they have become. They could exchange stories of their lives, with Luke and Leia learning about their parents' early days.
In a time travel fanfic, Anakin and Padame could be sent forward in time to meet Luke and Leia. At first, they are shocked by the state of the galaxy. But then, they decide to use their knowledge of the past to help Luke and Leia in their fight against the remnants of the Empire. Anakin, having redeemed himself in this new future, could train Luke further, and Padame could offer diplomatic and strategic advice to Leia.
The fanfic could be set during the Clone Wars. Anakin's dark side starts to emerge due to the stress and manipulation. Padme notices the changes in him. Meanwhile, Luke and Leia are prophesied to be the ones who can save the galaxy from the dark side that Anakin is falling into. It could show how their fates are intertwined even before they are born, with Padme trying to protect the future of her children and Anakin.