Family can be a theme as well. Maybe the characters are from different family backgrounds and how they deal with that in relation to their relationship. It could be that one character has a big family and the other a small one, and how that affects their bond in the fanfic world.
One common theme is romance. Fans often like to imagine a romantic relationship between their characters. It could be a sweet, slow - burn love story or a more passionate, fast - paced romance.
They could have a friendly rivalry dynamic. Maybe they are both competing for the same role in a big production, and while they are initially at odds, they come to respect each other's talents.
I'm not sure of the exact name, but there's a fanfic that focuses on a time - travel plot involving Luke Newton and Nicola Coughlan's characters. It's really creative as it weaves in elements of mystery and adventure. The way the author plays with the concept of time and how it affects their relationship is quite fascinating.
A modern - day fanfic could revolve around them being neighbors. Luke Newton's character is a struggling musician and Nicola Coughlan's character is an up - and - coming writer. They initially annoy each other but then gradually discover they have a lot in common. Their shared love for art and creativity brings them closer and they start collaborating on projects.
You can try fanfiction websites like Archive of Our Own (AO3). There are often a lot of great fanfictions about various pairings there. Just search for 'Nicola Coughlan and Luke Newton' in the search bar, and you'll likely find some interesting stories written by fans.
Luke himself would have a very different relationship with his own followers. If Percy's death makes him realize the wrongness of his actions, he might try to distance himself from his old allies who were involved in the actions that led to Percy's death. This would cause a rift among his group, with some still believing in the old cause and others being swayed by Luke's newfound conscience. At the same time, Luke would be constantly thinking about Percy and might even start to idolize him in a way, trying to live up to the selfless hero that Percy was.
In time travel situations, they may have to rely on each other in ways they haven't before. For example, if they travel to a time when the Force is not well - understood, Luke may have to depend on Han's non - Force - related skills more. Leia might find herself in situations where she has to mediate between Han and Luke more often, strengthening their bond as a trio. Their relationships would grow deeper as they face new challenges together.
If they time travel, their relationships might become more complex. For example, if they go back in time to before they met, they might initially not trust each other as they do in their own time. Han might be more distrustful of Luke's Jedi abilities, and Leia might not see Han as the hero she knows him to be. But as they face challenges together in the past, they could form deeper bonds in different ways than they did originally.
Newton had a cat. He was so particular about his experiments that he cut a hole in the door for the cat to pass through. But when the cat had kittens, he cut smaller holes for the kittens beside the big hole for the cat. It was a rather funny display of his logical yet somewhat odd way of thinking.