Well, a cool concept would be for Luke Skywalker to end up in the Marvel universe and train some of the young superheroes in the ways of the Force. Or perhaps the X - Men could find themselves in a conflict in the Star Wars galaxy, with their mutant abilities adding a new dynamic to the Star Wars battles.
A really interesting plot for a Marvel Star Wars crossover fanfic could involve the Infinity Stones being discovered in the Star Wars universe. The Jedi and Sith would then be in a race to obtain these powerful artifacts. This would bring together the two very different power systems of the Force and the Infinity Stones, and characters from both universes would have to form alliances or fight against each other depending on their motives.
A crossover could also involve the Infinity Stones and the Force. Maybe the Infinity Stones are actually related to the Force in some ancient, long - forgotten way. The Guardians of the Galaxy could discover this connection while exploring a new planet in the Star Wars galaxy. This would bring together characters from both universes to study and protect this powerful connection.
One interesting idea could be the technology exchange. For example, the Star Trek's warp drive might be compared or even combined with the Star Wars' hyperdrive in some creative ways. Another could be the meeting of characters. Imagine Captain Kirk facing off against Darth Vader. It would be a clash of two very different leadership styles and moral compasses.
Well, you could create a story where the Naruto characters are in the Star Wars universe. Picture Naruto as a Jedi in training, learning the ways of the lightsaber and the Force from the likes of Luke Skywalker. Or perhaps Sasuke could be a Sith apprentice, his Sharingan abilities adding a new dimension to Sith powers. And Hinata could be a Jedi healer, using her Byakugan to sense injuries in a different way.
One idea could be a crossover with the original Star Wars trilogy characters. Maybe the Rebels crew teams up with Luke Skywalker and Han Solo to take on a new, powerful Sith threat. This would bring together the scrappy underdog feel of the Rebels with the classic heroism of the original trilogy.
Another idea is a story where the Covenant from Halo discovers the Force in the Star Wars universe. They might see it as a new form of 'holy' power and try to either harness it or destroy those who possess it. This could lead to some epic battles between the Covenant and the Jedi or Sith.
One idea could be a wizard from the Harry Potter world accidentally getting transported to the Star Wars galaxy. They might use their magic in unexpected ways, like using a levitation charm to move starships. Another could be having Darth Vader encounter Voldemort. Vader's dark side power and Voldemort's dark magic would create a really intense showdown.
One idea could be that the Jedi or Sith from Star Wars somehow end up in the RWBY universe. Maybe a Sith Lord is after the Dust in RWBY for its power - similar to how they seek the Force in Star Wars. The Jedi could then come to stop the Sith and end up allying with the RWBY characters.
Another cool plot could involve Spider - Man getting lost in the Star Wars galaxy. He'd be swinging around on alien planets, using his web - shooters in creative ways. Maybe he teams up with Rey, and she teaches him a bit about the Force while he shows her some of his acrobatic moves. It would be a really fun and action - packed adventure.
For a Star Wars Clone Wars crossover fanfiction, you could explore the idea of a group of Mandalorians from different time periods coming together during the Clone Wars. They might have different views on the war and the Jedi. Some could be more traditional, while others might be influenced by the changing politics of the galaxy. Their presence could add a new layer of conflict and intrigue. They could interact with Clone Troopers, Jedi, and even the Sith in unexpected ways, leading to some epic battles and character - development moments.
One interesting idea could be the exchange of technology. For example, the Star Trek's transporter technology might be introduced into the Star Wars universe, changing the way characters travel between planets. Another could be a character crossover, like having Captain Kirk meet Darth Vader. It would be fascinating to see their different leadership styles and moral compasses clash or, perhaps, find common ground.