He could end up altering the entire history of the Gem war. Steven might try to find a way to end the war peacefully much earlier. He could convince the Diamonds to change their ways before things got as bad as they did in the original timeline. This would mean that many Gems who were corrupted in the original story might not be corrupted at all. And the Earth would probably be a very different place, with a more harmonious relationship between the Gems and humans.
A frequent theme in Steven Universe time travel fanfiction is the idea of alternate timelines. Writers like to play with different versions of events that could have happened if certain things were changed in the past. Also, self - discovery is a big theme. As characters travel through time, they learn more about themselves and their place in the universe. In some fanfictions, Steven might travel to the future and see how his actions in the present shape the world to come.
A time travel fanfiction could involve a character other than Steven, like Connie. She could travel back in time to meet Rose Quartz. This would be an interesting encounter as Connie could ask Rose about her past, her relationship with Greg, and her hopes for Steven. It could also create a situation where Connie has to make sure she doesn't accidentally change the past in a way that would harm the present.
A really interesting plot twist could be that Steven goes back in time and discovers that the Diamonds had different motives than he originally thought. Maybe they were being influenced by some other force in the past, and by going back, he uncovers this mystery. Also, he could find out that some of the things he thought were his friends' ideas were actually planted by an outside source long ago. This would completely change his understanding of the relationships and history in the Steven Universe world.
One common theme is self - discovery. When a character travels through time, they often learn more about themselves. For example, Steven might travel back to a time when he was younger and realize how much he has grown. Another theme is fixing past mistakes. Maybe a character goes back to prevent a certain event that had negative consequences in the future.
One great piece of Steven Universe time travel fanfiction is 'Time's Twist'. It takes the characters on a wild journey through different eras of the show's universe, exploring how their relationships change with the time shifts. Another interesting one is 'Temporal Gemstone', which focuses on a special gemstone that has time - traveling abilities and how Steven and the Crystal Gems deal with it.
In the context of the show's universe, it's a bit of a strange concept. Since fanfiction exists in our real - world fandom and not in the show's world directly. But if we were to imagine a meta - situation where he could access it, I suppose it could be possible. However, it would be a very surreal situation for him.
He would probably have a very mixed reaction. On one hand, seeing how fans view his world and his story could be really cool. He might enjoy seeing different versions of himself and his friends. However, if there are inaccuracies or things that go against his values in the fanfiction, he could also be a bit put off. It really depends on the nature of the fanfiction he's reading.
A great fanfiction could be about Steven and Connie swapping bodies. This would lead to a lot of humorous moments as they try to figure out how to act like the other. Connie would struggle with Steven's powers, and Steven would have to deal with Connie's more studious and disciplined life. It could also be a chance for them to understand each other on a deeper level.
A lot of these fanfictions also explore their individual growth. Peridot might grow out of her more rigid gem ways with Steven's influence, and Steven could learn new ways of problem - solving from Peridot. It's always fascinating to see how different authors imagine their relationship evolving in different scenarios.