One interesting concept could be the combination of the different technologies. For example, the warp drive from Star Trek and the hyperdrive from Star Wars. It would be fascinating to see how they interact and if they could be used together in some way. Another concept might be the meeting of the different species. The Vulcans from Star Trek and the Wookiees from Star Wars could have some very unique interactions. They have such different cultures and ways of life that it would create a lot of interesting storylines.
One interesting concept could be the interaction between the Federation in Star Trek and the Galactic Republic in Star Wars. For example, how would their different forms of government and ideologies clash or cooperate? Another concept might be the use of technology. Star Trek has the transporter and Star Wars has the hyperdrive. How would characters from each universe react to the other's technology? Also, the idea of Jedi and Vulcans interacting due to their shared emphasis on mental discipline is really cool.
One interesting concept could be the meeting of different species from both universes. For example, seeing how a Wookiee from Star Wars would interact with a Vulcan from Star Trek: Voyager. Another might be the exchange of technology. The lightsabers of Star Wars and the phasers or replicator technology from Star Trek could lead to some really cool scenarios. Also, the moral and ethical differences between the two franchises could create some intense storylines when the characters collide.
One interesting concept could be the combination of the Halo's Spartans with the Jedi or Sith in Star Wars. Imagine a Spartan with the Force abilities. Another concept might be the Covenant and the Empire teaming up, which would create a really powerful and menacing alliance. And also, the idea of Halo's advanced technology like the Forerunner tech interacting with Star Wars' unique galactic technology is fascinating.
In 'Star Wars meets Earth' fanfiction, a great concept is the cultural exchange. The Jedi Code and its principles could be compared and contrasted with Earth's moral and ethical beliefs. Also, the idea of Sith Lords trying to take over Earth is quite fascinating. It would lead to epic battles between the Sith's dark side powers and Earth's defenders, whether they be military forces or super - heroes.
One interesting concept could be a crossover of characters' powers. For example, Iron Man's technology in the Star Wars universe, like his suits being used in the battles against the Sith. Maybe his repulsor rays could be adapted to deal with lightsaber attacks.
One interesting concept could be alternate timelines. Fanfiction often explores how different events in the Star Trek 2009 universe might lead to completely new storylines. For example, a different outcome of a battle could change the power dynamics among different species. Another concept is character development. Writers might delve deeper into the backstories of characters, like exploring Kirk's early days at the Academy in more detail than the movie did.
One interesting concept is exploring the backstories of minor characters. For example, in some fanfictions, they might delve into the past of a random stormtrooper, showing how they ended up in the Empire. Another concept could be alternate endings to major events in the series. It gives fans a chance to rewrite parts they thought could have been better.
Maybe there could be a story where a Starfleet officer gets stranded in the Star Wars galaxy and has to learn to use the Force to survive. They could end up being mistaken for a new type of Jedi or Sith and get involved in the power struggles there. They might introduce some Star Trek concepts like the Prime Directive to the Star Wars characters, causing a lot of interesting debates about morality and interference.
One interesting concept is the alternate characterizations. In Mirrorverse fanfiction, characters often have darker or more morally ambiguous traits compared to their original counterparts. For example, Kirk might be more of a power - hungry and ruthless leader. Another concept is the different power dynamics within the Starfleet and other factions. The political intrigue is often ramped up, with backstabbing and power plays being common themes. Also, the technology might be used in more devious ways, like phasers being modified for torture rather than just defense.
One interesting concept is alternate timelines. Fanfiction often explores what would happen if certain events in Star Trek Generations occurred differently. For example, if Picard had made a different choice during his encounter with Soran. Another concept could be the expansion of character backstories. Maybe delving deeper into the history of Data or Worf in a way that wasn't fully explored in the movie. Also, the idea of crossovers within the Star Trek universe is common. Such as characters from other Star Trek series interacting with the events and characters of Star Trek Generations.