Maybe a fanfiction where the events of 9/11 cause the Twilight world to be more aware of human vulnerability. So, the vampires and werewolves come together to protect humans not just from their own kind but also from future disasters. This could lead to a whole new set of alliances and storylines within the Twilight universe.
There might be a story where a character from Twilight has a premonition about 9/11 and tries to stop it. They could struggle with the knowledge of the impending disaster and face difficulties in convincing others to take action.
In 'twilight then twilight now fanfiction', there might be alternate timelines. Some stories could show what would have happened if certain events in the original 'Twilight' series had different outcomes. For instance, if Bella had chosen Jacob instead of Edward. This kind of plot twist can make the fanfiction really engaging and offer a fresh perspective on the familiar Twilight universe.
There are fanfictions that focus on the backstories of secondary characters. For example, a story about Rosalie's life before she was turned into a vampire. It might detail her human experiences, her dreams, and how those were shattered when she was changed. This kind of fanfiction can add a whole new dimension to the Twilight universe.
There are often many stories about a new character being pulled into the Twilight universe. Some might involve the character becoming a part of the vampire - werewolf drama, perhaps befriending Bella or getting caught in the middle of the Cullens' and the Volturi's power struggles.
There could be a fanfiction where the Twilight Key is stolen by a new villain in the Twilight universe. This villain uses the key to unlock ancient secrets that put all the vampires and werewolves in danger. The Cullens and the pack then have to team up to get the key back and save their world. It would be full of action and suspense.
One interesting story could be about a new character rising to power in the Twilight Empire. They might have unique abilities that change the political landscape.
There are fanfictions where Twilight and Fluttershy team up to help a new pony in Ponyville adjust. It shows their friendship and how they use their different personalities, Twilight's studiousness and Fluttershy's kindness, to make the new pony feel welcome.
One interesting Sunshine Twilight fanfiction could be about a new character who enters the world of Twilight and brings a ray of'sunshine' in the form of a unique power or personality trait that changes the dynamics among the existing characters.
Well, there are fanfictions where the characters in Shelter Twilight face a new threat that's not in the original story. Maybe a strange force starts to make the Shelter's systems malfunction, and the characters have to work together in ways they haven't before. It could be a great opportunity to explore their personalities more deeply. Also, some fanfictions might focus on the backstories of the characters, like how they came to be in the Shelter in the first place, which can add a whole new layer of depth to the overall story.
One interesting story could be about a different take on Bella's transformation. Maybe she has more control over her new vampire abilities right from the start. Another could be a story that focuses on the friendship between the Cullens and other vampire clans that wasn't explored much in the original. And there might be a fanfiction where Jacob's character has a more complex backstory related to his shape - shifting abilities.
One interesting 'dark twilight fanfiction' could be about a world where the Volturi take over Forks and impose their strict vampire laws on humans. It would be a really dark take on the normal Twilight setting.