One possible plot could be that the Terminators are sent back in time to the Star Wars universe. Maybe they are sent by some future evil force to disrupt the balance of the Force. The Jedi would then have to figure out how to deal with these mechanical threats that are not affected by the Force in the traditional sense. They might try to use their lightsabers to cut through the Terminators, but find that it's not as easy as they thought.
Another idea is that in a post - apocalyptic Star Wars universe (maybe after a new, more powerful Death Star destroys many planets), the remaining survivors team up with reprogrammed Terminators. These Terminators could help the Star Wars characters rebuild their society and fight off any remaining threats from the Sith or other dark forces. The Terminators' technology could be integrated with Star Wars technology, leading to some really interesting new inventions and ways of fighting.
The plot could involve a cross - over of characters. For example, Darth Vader could encounter a T - 800. Vader, with his dark side powers, might initially underestimate the Terminator's brute strength and durability. The Terminator, on the other hand, has no concept of the Force and would simply see Vader as another target. This encounter could lead to an epic battle where Vader tries to use the Force to manipulate the Terminator, but the Terminator's advanced programming resists such attempts.
One possible plot could be that the Terminators are sent to the Naruto universe to hunt down a particular ninja who has knowledge that could change the future of the real world. Naruto and his friends would then have to fight these advanced machines using their chakra powers and ninja skills. For example, Naruto might use his Rasengan against a T - 800, and the T - 800 would use its brute strength and advanced weaponry. It would be an epic clash of two very different worlds.
In a Robocop and Terminator crossover fanfiction, the plot could center around the discovery of a time - traveling device in the Robocop universe. Robocop accidentally activates it and ends up in the future of the Terminator world. There, he meets the human resistance led by John Connor. They initially suspect him because of his robotic nature, but soon realize he can be an ally. Together, they figure out a way to use Robocop's unique abilities, like his advanced law - enforcement programming, to defeat Skynet once and for all.
Well, it could be that Venom somehow gets transported to the Star Wars universe. Maybe he lands on a planet like Tatooine and causes chaos among the local gangs. The Sith could be interested in his power and try to control him, but Venom is too wild. And the Jedi might sense his dark presence and have to decide whether to destroy him or try to redeem him.
One possible plot could be that Ben Tennyson and his Omnitrix somehow get transported to the Star Wars galaxy. Ben might team up with the Jedi to fight against the Sith. His alien forms could provide unique combat abilities in the Star Wars universe. For example, Four Arms could be a powerful physical fighter against stormtroopers, and Heatblast could deal with enemies in hot environments like Tatooine's deserts.
A plot could center around a lost Star Wars character ending up in the Sekirei world. This character, perhaps a young Jedi in training, has to find a way back home. In the process, they befriend a Sekirei and start to understand their way of life. Meanwhile, back in the Star Wars galaxy, the Sith sense an unusual power shift due to the connection between the two worlds. They send agents to the Sekirei world to investigate and try to disrupt the harmony there. The young Jedi and their Sekirei friends must then work together to stop the Sith and also find a way to reopen the portal to send the Jedi home.
One possible plot could be that Supergirl, through some sort of inter - dimensional rift, ends up in the Star Wars universe. She might team up with the Rebel Alliance. Her superpowers would be a great asset against the Empire. For example, she could easily take down Imperial starships with her heat vision or super strength. Maybe she'd have to learn to use a lightsaber too, which would be an interesting addition to her powerset.
The droids in the Star Wars universe, such as R2 - D2 and C - 3PO, would have a very different reaction to the Terminators. R2 - D2 might be curious about the Terminators' technology and try to interface with them. C - 3PO, on the other hand, would probably be terrified. He would constantly warn the other characters about the potential danger of the Terminators, while also trying to find some sort of diplomatic solution to avoid conflict.
A plot could involve a conflict where the Covenant from Halo somehow gets involved in the Clone Wars. The Clone troopers and the Jedi would have to figure out how to fight this new and strange enemy. The story could explore how the different powers and abilities in both universes interact. For example, the Force versus the Spartans' enhanced physical abilities. It could also show how the Jedi Council reacts to the arrival of these unknown warriors from another dimension.
One possible plot could be that the Combine from Half - Life somehow make their way into the Star Wars universe. Gordon Freeman could team up with a group of Jedi. Maybe the Combine are after the Force - sensitive individuals in the Star Wars galaxy, thinking they can use the Force for their own evil purposes. Gordon Freeman uses his scientific knowledge and his HEV suit to help the Jedi understand the technology of the Combine and they fight together to stop the Combine invasion.
One possibility could be that the Jedi and the members of the Justice League team up to fight a common enemy. For example, a powerful Sith Lord who has somehow made his way to the DC Universe and is causing chaos. The Jedi's use of the Force combined with the superpowers of the Justice League members like Superman's strength, Batman's strategic mind, and Wonder Woman's combat skills would make for an epic battle.