Often in such crossovers, you'll see unique mash-ups of technology and gadgets from both shows. Storylines might involve saving a planet that's at the crossroads of Star Trek and Doctor Who's timelines. Also, there could be fun character interactions as they face challenges that require the combined skills and knowledge of both crews.
It could have exciting encounters between the characters of both universes. Maybe a time-travel adventure that combines their unique technologies and skills.
Well, it could feature intergalactic conflicts that require the unique skills and knowledge of both Doctor Who and Star Trek characters. Or perhaps there'll be a mystery that only their combined efforts can solve, involving time paradoxes and advanced alien civilizations.
It could have characters from both universes interacting in unexpected ways. Maybe there's a shared mission or a clash of ideologies.
It could range from time-travel adventures to intergalactic diplomatic encounters. Maybe a Doctor Who character accidentally lands on a Star Trek starship and chaos ensues!
There could be exciting possibilities like combining the advanced tech of Star Trek with Doctor Who's time-travel adventures. But the challenge could be keeping the tones and characters of both shows consistent.
Often, fanfiction explores the characters' meeting in alternate realities or during major events. Also, there's a lot of focus on how their technologies and abilities combine to solve problems.
In such a crossover, we could see familiar Doctor Who villains interacting with the Star Trek crew. Maybe the Doctor has to use the TARDIS to help the Enterprise escape a dangerous anomaly. It'd be a mash-up of epic proportions!
Often, such crossovers might have Merlin using his magic to assist the Doctor in facing interdimensional threats. Or, the Doctor could travel to Camelot and encounter Merlin's challenges. There could also be time paradoxes and alternate timelines explored.
The key elements could include interactions between the characters from both shows, maybe a shared adventure or a mission to save the universe. Storylines could involve time travel paradoxes or facing a common enemy.
One interesting storyline could be the Federation from Star Trek discovers the world of Middle - earth from Lotr. Maybe they try to introduce their advanced technology to the Middle - earthlings. For example, they could offer medical help to the injured during battles. Another could be characters from both universes teaming up to fight a common enemy, like a powerful dark entity that threatens both the Federation's space and Middle - earth.