Another popular trope is the 'power transfer'. In some fanfictions, the idea is that the time - traveling capabilities from Back to the Future could somehow interact with the Force in Star Wars. Maybe a character from Back to the Future gains the ability to use the Force because of a time - space anomaly, or a Star Wars character gets access to time - travel technology and uses it in unexpected ways to change the course of the galaxy's history.
One common crossover is the idea of time - traveling in the Star Wars universe like in Back to the Future. For example, a character from Star Wars might use a device similar to the DeLorean to go back in time and change key events in the Galactic Civil War. Another crossover could involve the character personalities. Maybe Luke Skywalker and Marty McFly team up. Marty's street - smart attitude could complement Luke's Jedi - trained discipline.
One way to blend the two universes could be through time travel. In a fanfiction, perhaps a character from Back to the Future accidentally travels to the Star Wars galaxy. They could introduce advanced Earth technology to the Star Wars characters, like the hoverboard, which might be used in lightsaber battles for added mobility. This would create a whole new dynamic in the Star Wars universe.
In the fanfiction 'Star Wars Watches the Future', it might involve the Sith Lords also having an interest in the future. They could be planning to manipulate events in the present based on what they see in the future. For example, Darth Vader might see a future where the Jedi are extinct and try to accelerate that process in the present, leading to a whole new set of conflicts and power struggles within the Star Wars universe.
Luke Skywalker and Marty McFly are often popular choices. Luke's heroism and Jedi powers combined with Marty's relatable and adventurous nature can make for great stories. Another popular combo is Darth Vader and Doc Brown. The contrast between the dark, powerful Sith Lord and the eccentric inventor can create a lot of drama and humor in a fanfiction.
A cool concept could be that the flux capacitor in the DeLorean gets a power boost from the Force. This allows Marty to travel not just through time, but also between different planets in the Star Wars universe. He could end up on Endor and help the Ewoks in a new way, using his knowledge from the future. Another concept is that Darth Vader discovers the DeLorean and tries to use it for his own evil purposes, like traveling back in time to stop Luke Skywalker from being born.
Han Solo would likely be amused by some of the fanfiction. He has a sense of humor and a bit of a rogue nature. He might laugh at the outlandish scenarios and say something like 'Kid, that's the craziest thing I've ever heard, but I kind of like it.'
One way to write this fanfic is to think about the themes. Both Back to the Future and Star Wars deal with the idea of destiny. So, your story could revolve around how Marty's destiny in his own universe is somehow linked to the fate of the Star Wars galaxy. You could also play with the concept of time differently in the two universes. In Star Wars, there's a more linear view of time in a sense, while in Back to the Future, time - travel is a central mechanic. Combine these ideas to create an interesting narrative. For instance, what if Marty's actions in the Star Wars universe change the future of his own world in unexpected ways?
They expand it by introducing new characters. These new characters can be from different planets or species that we haven't seen much in the official Star Wars lore. For example, a fanfiction might introduce a race of telepathic beings who live in a nebula.
One possible future fanfiction could be about Rey's further training. Maybe she travels to a long - forgotten Jedi temple and discovers new powers. She could face new dark side threats that are more powerful than the First Order. This would be an exciting adventure as she continues to grow as a Jedi.