A common theme is self - discovery. As Ben travels through time, he often learns more about himself, his powers, and his place in the Jedi legacy. Another theme is changing the past or future. Sometimes he tries to prevent bad events from happening, which leads to all sorts of interesting consequences.
One great Ben Skywalker time travel fanfiction is 'Ben Skywalker: Journeys Through Time'. It has an interesting plot where Ben travels back to key moments in Jedi history. The author does a great job of portraying how Ben's modern - day knowledge and skills interact with the past events.
One idea for a Ben 10 Ben and Young Gwen time travel fanfiction could be that they travel back to the time when the Omnitrix was first created. They could witness the origin of the device and perhaps even meet the aliens who had a hand in its creation. This could lead to them learning secrets about the Omnitrix that they didn't know before, which could help them in their present - day battles.
In Clone Wars fanfiction, Ben Skywalker often appears as a character full of potential. He can be depicted as a young Jedi in training, learning from the experiences of the Clone Wars. Writers might explore his relationships with other characters, like how he interacts with Clone Troopers or Jedi Masters.
One common theme is redemption. Since Anikin's fall to the dark side is such a big part of his story, in time travel fanfics, he often gets a chance to go back and right his wrongs, which is a form of seeking redemption.
In a time - travel scenario, Anakin's relationship with his mother could be greatly altered. He could go back in time and save her from the Tusken Raiders. This would change his whole outlook on life and his path towards the dark side. Regarding his relationship with Palpatine, he would be aware of Palpatine's true nature from the start. So, he could either avoid Palpatine completely or try to expose him earlier. His relationship with other Jedi, like Ahsoka, could also be different. He could be a better teacher and mentor to her, as he has the experience of his future mistakes.
If baby Luke time - travels to a post - apocalyptic future in the Star Wars universe, he could be the key to rebuilding the Jedi Order. His very existence could inspire the survivors to start anew. They might look at his pure connection to the Force as a sign that there is still hope for a better future, and they would protect and train him to become a great Jedi, changing the fate of the galaxy once again.
Time travel could also put a strain on his relationships. If Ben goes to the future and sees something bad happen to his friends or family, he might become overprotective when he returns to the present. This overprotectiveness could annoy his friends and cause friction in their relationships, as they might not understand why he's suddenly acting so differently.
In a 'Ben 10 Ben X Young Gwen Time Travel Fanfic', the possibilities are endless. They could travel to the future first and see a dystopian version of their world where the bad guys have won. This spurs them to go back in time to prevent it from happening. Along the way, they might meet their future selves who give them clues or warnings. Their time - traveling could also cause some unforeseen consequences, like creating alternate timelines. For example, if they change one small event in the past, it could lead to a completely different Ben 10 universe in the future. So they have to be very careful with their actions during their time - traveling journey.
Another great time - travel scenario could be Ben going to a future version of the Omniverse. He could see how his actions in the present have affected the future. He might discover new forms of the Omnitrix or new allies and enemies that have emerged as a result of his present - day decisions.