Their relationship could develop uniquely if Darth Vader starts to have dreams about Baby Luke's future as a great Jedi. These dreams make him question his loyalty to the dark side. So he begins to secretly guide Luke in the ways of the Force, like leaving behind ancient Jedi texts for the baby to find when he's older.
In a unique development, Darth Vader could be forced by some sort of Sith curse to take care of Baby Luke. At first, he resents it, but as time passes, he sees the purity and potential in the baby. He starts to communicate with Luke through the Force, sharing his own experiences and knowledge, both good and bad. Luke, being a baby, doesn't fully understand but absorbs this knowledge subconsciously. As Luke grows older, this connection becomes more conscious, and they form an unorthodox bond that is a mix of teacher - student, father - son, and dark - light side of the Force relationship.
One way their relationship could develop uniquely is that Darth Vader, instead of being the menacing figure, becomes a sort of guardian angel for Baby Luke. Maybe he uses his Sith powers to shield the baby from danger without Luke ever really knowing who is protecting him. As Luke grows, he starts to sense a dark yet protective presence, and this mystery draws him closer to understanding Vader and the Force in a different way. This would be a really different take on their relationship compared to the original story.
In fanfiction, their relationship could develop more quickly towards mutual understanding. Maybe Luke could convince Vader to turn away from the dark side much earlier, and they could start training together as Jedi. This would be a huge shift from the original story.
One way is to have them communicate through the Force in a non - traditional way. Instead of direct conversations, they exchange emotions and memories. For example, Ahsoka could send Vader memories of their time together as master and apprentice, trying to stir the Anakin within him. Another unique exploration could be through dreams. They both have nightmares or dreams related to each other, which could reveal their true feelings and fears about their relationship.
Perhaps it would start off rocky. His grandchildren would be wary of him because of his reputation. But as they get to know him, they realize he has changed and they start to form a bond. They might learn from his experiences and he from their fresh perspectives on life. It could be a relationship of mutual growth.
In some fanfictions, their relationship develops through a series of battles. Each encounter makes them more aware of the other's strength and weaknesses. For example, Vader might initially see Ahsoka as a mere nuisance but as they fight more, he starts to respect her skills, which in turn makes him question his own choices more deeply. And Ahsoka, she begins to understand the depth of Vader's fall and feels a sense of sorrow for him.
The relationship could develop in a complex way. Since Vader has captured Luke, there's a power imbalance. However, as they interact, Luke might try to reach out to the good in Vader. Vader, in turn, might be conflicted. He could start to protect Luke from the Emperor's harsher plans, leading to a strange alliance within the captivity.
Well, if Darth Vader looks for Luke in Tatooine in fanfiction, it could be a really intense story. He might sense Luke's presence through the Force, but the Force can be tricky on Tatooine with all the sand and strange energy fields. He could end up in a wild goose chase, following false leads. And who knows, he might even have to deal with some of the local criminal elements who don't take kindly to a Sith Lord stomping around their territory.
Well, one possible plot could be that Darth Vader tries to persuade Luke to join the dark side once again. Maybe he shows Luke some 'truths' about the Jedi that he believes are lies, trying to shatter Luke's faith in the Jedi way.
Explore their different ideologies. Luke believes in the light side and redemption, while Vader is deep in the dark side. Have them debate their beliefs in a way that shows respect for each other's views. Maybe Luke tries to convince Vader that there is still good in him, and Vader challenges Luke's naivete about the power of the dark side. This back - and - forth can build a complex relationship.
A great plot idea could be that Darth Vader is ordered by the Emperor to kill Baby Luke, but he can't bring himself to do it. Instead, he fakes the baby's death and takes him to a hidden Jedi enclave. There, with the help of some remaining Jedi, they start to train Luke in secret. Meanwhile, Vader has to constantly deceive the Emperor about Luke's whereabouts and his own actions regarding the boy. This would create a lot of tension and drama in the fanfiction as Vader is walking a very dangerous line between the dark side and a newfound sense of hope through the baby.
Yes, there are some interesting ones. You can start by looking on fanfiction websites like Archive of Our Own. There, you'll find various interpretations of their relationship within the Star Wars universe. Some might focus on the redemption aspect of Darth Vader through his love for Luke, while others could explore a more complex emotional bond that defies the typical good - evil dynamic.