Some popular themes include the exploration of parallel universes where the crews of both shows work together. Another is the idea of characters swapping places and having to adapt to the unfamiliar settings of the other franchise. Also, there's a lot of interest in how their enemies might team up or be defeated jointly.
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.
It could have exciting encounters between the characters of both universes. Maybe a time-travel adventure that combines their unique technologies and skills.
One common theme is time travel. Both franchises deal with it, so it often shows up in fanfiction. Another is exploration of new worlds and species.
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!
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 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 range from time-travel adventures to intergalactic diplomatic encounters. Maybe a Doctor Who character accidentally lands on a Star Trek starship and chaos ensues!
Often, you'll find crossovers where characters from both universes meet and interact. Time travel and exploration of strange new worlds are common themes too.
Q is a character that is frequently used in Star Trek crossover fanfiction. His omnipotent and mischievous nature can stir up all kinds of chaos when he interacts with different Star Trek crews. He can easily create situations that force characters from different series to work together or face challenges they never expected. Another popular character is Seven of Nine from Voyager. Her Borg - related backstory and her journey towards humanity can be a great addition to crossovers, especially when paired with characters who have different views on artificial intelligence.
It could be really exciting. You could have characters from both universes interacting and facing unique challenges together. But it might be hard to balance the different tones and lore of the two shows.
Seven of Nine would be an exciting character to include. Her unique backstory and abilities could add a lot to a crossover. In a crossover with the Doctor Who universe, for instance, her Borg knowledge might be useful in dealing with the Cybermen. Picard is also a classic character. His diplomatic skills could be put to the test in a crossover with the Star Wars universe, negotiating with the Galactic Republic or the Empire.