In a crossover, Archie's relationship with his friends might change. He's used to being the football star in Riverdale, but in the Arrowverse, he could be in awe of the superheroes. His friendship with Jughead might be tested as Jughead tries to keep Archie grounded while Archie is excited about the new world. Betty and Veronica's relationship could also shift. They might compete in a different way, like trying to impress a certain Arrowverse hero. Their friendship could become more competitive or they could find new common ground in helping the heroes.
One interesting crossover could be the characters from Riverdale getting involved in an Arrowverse - style crisis. For example, Archie could find himself in Star City during a meta - human attack and team up with Green Arrow. The contrast between the small - town drama of Riverdale and the high - stakes superhero world of the Arrowverse would create great storylines. Another possibility is Betty and Veronica using their wits and resources to help the Arrowverse characters solve a mystery that has both normal and super - powered elements.
One aspect to consider in 'Crisis on Earth X' fanfiction could be the exploration of alternate versions of characters. Writers often take advantage of the multiverse concept in this storyline to create unique character arcs that deviate from the original canon.
Fanfiction often gives the opportunity to develop secondary characters more. In the context of Crisis on Earth X, these characters can play crucial roles. They might have unique skills or knowledge that help in dealing with the crisis, and their growth and contribution can be a central part of the fanfiction story.
Batman himself is obviously one of the most popular. Fans love to see how he would be written in the Arrowverse context. Another popular character would be Alfred. His relationship with Batman and his role as the caretaker and advisor always adds depth to the story. And also, characters like Catwoman might be popular as she brings in the element of mystery and romance to the fanfictions.
One interesting concept could be the different team - ups. For example, Batman might team up with Green Arrow in unique ways that we don't see in the regular DC universe. Maybe they combine their detective skills to solve a complex mystery that spans across both Gotham and Star City.
One idea could be a story where characters from different Arrowverse shows team up to fight a new, powerful villain from a different dimension. For example, Oliver Queen from 'Arrow', Barry Allen from 'The Flash', and Kara Danvers from 'Supergirl' could combine their skills and powers to take on this threat.
One interesting Arrowverse OC fanfiction could be about an OC who has the power to manipulate time and how they interact with the existing heroes and villains in the Arrowverse. They might start by trying to prevent a major disaster that was foreseen in a vision.
The Arrowverse takes inspiration from the comics, but it's not a one-to-one canon. Writers and producers make choices to create a unique and coherent TV narrative, which means not all comic details are followed precisely.
Hush could be an interesting choice. He could be spreading false rumors and causing distrust between the heroes and the citizens of both cities. His knowledge of Gotham's underworld and his ability to manipulate people could make him a formidable foe for Batwoman and Arrow. They would need to uncover his true identity and stop him before he completely destroys the relationship between the two cities.