Well, a great storyline in prehistoric park fanfiction could involve a group of scientists trying to genetically modify a prehistoric creature to make it more docile. But things go wrong, and the modified creature becomes super intelligent and starts to outwit the park security. Also, there could be a fanfiction where a character from the present day forms an unlikely bond with a prehistoric animal, like a triceratops, and they have to go on an adventure together to save the park from a natural disaster.
One idea could be a crossover with 'Jurassic Park'. The characters from 'Prehistoric Park' could visit the Isla Nublar and deal with the genetically modified dinosaurs there. They might try to use their own methods of handling prehistoric animals to fix the chaos in 'Jurassic Park'.
Some fanfictions might explore the idea of Kenny and Karen growing up. As they grow older, their relationship could change. They might start to have feelings for each other that are more than just brother - sisterly. But they have to deal with the opinions of the people around them in South Park. This could lead to a lot of drama and emotional moments in the fanfiction, like them trying to keep their relationship a secret at first.
One possible storyline could be Naruto arriving in South Park by some sort of strange portal. He might be confused by the strange and often inappropriate behavior of the South Park kids. And the South Park kids could be both intrigued and scared of this ninja from another world. They could try to get him to use his ninja skills for their own local problems, like getting rid of the school bully or something.
Definitely Nigel Marven from 'Prehistoric Park'. His knowledge and enthusiasm for prehistoric animals would make him a key figure in any crossover. If it was a crossover with 'Terra Nova', he could team up with the Shannon family. His expertise would help them better understand the prehistoric world they are living in and he could also learn from their experiences in a colony in a prehistoric environment.
One of the most popular characters is often the park's head scientist. They are usually depicted as very intelligent and brave, always coming up with solutions to the various problems that arise in the park. Another popular character is the park ranger. They are the ones who are out in the field, dealing with the dinosaurs directly and getting into all sorts of adventures.
Another could be a 'what if' scenario. Like what if a certain character got injured along the way and how it would change the dynamics of the group. This could involve exploring the relationships between the characters as they deal with the unexpected situation.
One popular storyline could be the South Park girl helping the New Kid navigate the strange and crazy world of South Park. For example, she could introduce him to all the unique characters and their quirks.
Well, perhaps in the fanfiction, it's part of a bet between the two. Cartman thinks he can make Kyle so mad that he'll do something really out of character, like kissing him. Kyle, on the other hand, takes the bet to prove Cartman wrong. But when the kiss actually happens, it stirs up a lot of emotions they didn't expect. It could also be a situation where they are under some alien influence. The aliens are studying human emotions and force Kyle and Cartman to kiss to see how the other kids in South Park will react.
One idea could be exploring what would happen if the dinosaurs developed a form of communication with humans. For example, a velociraptor that tries to warn the park workers about a hidden danger in the park.
One interesting storyline could be about the characters' exploration of a new, mysterious part of the Hollows. They might encounter strange creatures and have to use their unique abilities to survive.