One idea could be Luke traveling back in time to the Clone Wars era. He could meet his father, Anakin Skywalker, before his fall to the Dark Side and try to prevent it. Maybe he uses his Jedi skills to influence Anakin in a positive way, like teaching him some advanced Jedi techniques that could strengthen his connection to the Light Side.
Another plot could involve Luke traveling to the future. He discovers a galaxy in chaos due to a new, powerful dark force. He has to adapt to the new technology and ways of the future while also trying to figure out how to defeat this new threat. He might meet descendants of his friends or even discover a new form of the Force that has emerged in the future.
Luke could also time - travel within his own life. For example, he goes back to his days as a young farm boy on Tatooine. He uses his knowledge as a Grand Master to guide himself in his early Force - sensitive years. He could help his Uncle Owen make better decisions about the droids, which could potentially change the course of his own journey to becoming a Jedi much earlier and more smoothly.
Another interesting plot is Luke traveling to the future. He discovers a galaxy in chaos due to a new, powerful dark force. He has to adapt to new technologies and new forms of the Force while also finding a way to defeat this new threat. He might meet descendants of his friends and foes, which would add an interesting dynamic.
One idea could be Luke traveling back in time to the Clone Wars era. He could meet Anakin Skywalker before his fall to the Dark Side and try to change his fate. Maybe he'd use his knowledge of the future to prevent certain battles or alliances that led to the downfall of the Jedi Order.
A really interesting plot would be if Luke's time travel was accidental and he ended up in a parallel universe. In this universe, the roles of the Sith and the Jedi are reversed. He would have to figure out how to get back to his own universe while also dealing with the strange new world he's in. Here, he might learn things about the Force that he never knew before, like different ways to use it that are unique to this parallel universe.
One idea could be Anakin traveling back in time to prevent his fall to the dark side. He could use his knowledge of the future to avoid the events that led him astray, like not trusting Palpatine. Another plot could involve him traveling to a time after his death and seeing the impact of his actions on the galaxy, which could be a moment of redemption for him. And perhaps he travels to a completely different era in the Star Wars universe and has to adapt to new cultures and powers while also dealing with his own inner turmoil.
One idea could be that she discovers her father's legacy in a hidden Jedi temple. Another could be her having to face an ancient Sith threat that was once defeated by Luke. Maybe she teams up with new characters to protect the galaxy like her father did.
In a Clone Wars fanfiction, Luke could be involved in a mission where he has to team up with some of the well - known Clone Wars characters like Anakin Skywalker. He might initially struggle to work with his father without revealing their relationship, and they could learn from each other's different perspectives on the Force and the war.
One idea could be a story where Darth Vader secretly trains Luke in the ways of the Force before Luke fully realizes who he is. This would add an interesting layer of secrecy and moral conflict for Vader.
One idea could be a story where Luke discovers a way to temporarily reverse Vader's Sith corruption, leading to some heart - to - heart conversations between them as Anakin. Another could be a fanfic where they have to team up against a new, greater threat in the galaxy that neither the Rebels nor the Empire can handle alone. Maybe a story where Luke gets trapped in a Sith - created alternate dimension and Vader has to go in and rescue him to atone for his sins.
One idea could be that baby Luke Skywalker time - travels to the era of the Old Republic. He could end up being found by a Jedi Master there and starts his training much earlier. This would completely change the course of the Star Wars timeline as he'd be much more powerful by the time the original trilogy events are supposed to occur.
One plot idea could be that Luke Skywalker discovers an ancient Jedi artifact that has a connection to Revan. As he delves into its secrets, he starts having visions of Female Revan. They then start communicating across time and space, sharing their knowledge of the Force and different eras of the Jedi. This could lead to Luke learning new ways to combat the dark side from Revan.