You could also do a fanfiction where the Total Drama Island is invaded by an outside force, like a group of super - intelligent aliens who want to study the human behavior in a competitive and extreme environment. The contestants would then have to not only compete with each other but also figure out how to deal with the aliens. This would introduce new challenges and force characters to work together in ways they never had to before.
A 'what - if' scenario where the teams are shuffled in a completely different way than in the original series. For example, putting all the strong - willed characters on one team and all the more laid - back ones on another. This would lead to different alliances and rivalries. Maybe the strong - willed team would constantly clash due to their big egos, while the laid - back team would find unique ways to get along and succeed.
One idea could be a time - travel plot where a character goes back to the first season and tries to change the outcome of certain challenges. This would bring a whole new dynamic as they interact with their past selves and try to outwit the original villains.
Well, you could have a plot where the Total Drama War is actually a simulation created by an unseen force. The contestants start to realize this as strange glitches and unexplainable events occur. Another plot could be based on a love triangle that forms during the war, causing tension not only between the teams but also within the individual relationships. And then there's the idea of a team of underdogs who use their unique skills and teamwork to turn the tables in the Total Drama War.
One idea could be a crossover with another popular animated show. For example, if Total Drama crossed with Adventure Time, Finn and Jake could end up on the Total Drama island and participate in the challenges. They would bring their own unique skills and humor to the mix, like Finn's sword - fighting abilities and Jake's shape - shifting. Another plot could involve characters from Total Drama being transported to a different fictional world, like the wizarding world of Harry Potter. They would have to adapt to new rules and use their wits to survive. Maybe Heather would try to use magic to her advantage in the Triwizard Tournament.
One idea could be to create a story where the contestants have to face a new set of challenges in a haunted movie studio. Another could be a love triangle between some of the popular characters during the action - packed competition. Or perhaps a story where an underdog contestant discovers a hidden talent that gives them an edge in the challenges.
One idea could be a character who was previously eliminated getting a second chance and having to prove themselves all over again. Maybe they have some new skills or a changed attitude.
One idea could be an OC who has a special hidden talent like being able to communicate with animals on the island. This could lead to some really unique challenges and alliances. For example, they might use the animals to help them find hidden immunity idols or to spy on other contestants.
One idea could be that Naruto finds himself mysteriously transported to Total Drama Island. He could use his ninja skills in the various challenges, like using his speed to win races or his shadow clone jutsu to complete multiple tasks at once. Another plot could involve the Total Drama Island contestants being sent to the Naruto universe and having to adapt to the ninja way of life, facing off against ninja enemies with their own unique skills.
Perhaps a time - travel fanfiction where Mike and Zoey are sent back to the early days of Total Drama. They have to navigate the original challenges while also trying not to change the future too much. Zoey could use her modern knowledge of the show and its contestants to their advantage, and Mike's personalities could shock the past contestants. They might also have to deal with the differences in the rules and the more primitive technology of the past.
One idea could be Mal trying to form an all - evil alliance within the new season of Total Drama. He could secretly recruit contestants who have a hidden dark side.
One idea could be an OC who has a secret military training background that gives them an edge in the Total Drama challenges. For example, they can use their combat skills during physical challenges. Another could be an OC from a military family trying to prove themselves in the game, while facing internal conflicts about loyalty to their family's military values and the cutthroat nature of the Total Drama show. Also, an OC who is a military strategist could form alliances and manipulate the game using military - style tactics.
One idea could be a character who was previously underestimated coming back to win the whole competition in a really unexpected way. For example, a character like B who was always seen as a sidekick suddenly reveals some hidden skills and outsmarts all the others.