Another exciting plot twist could be that Goku's time travel causes him to switch bodies with his past self. So, the young Goku has all of the power and knowledge of the future Goku. This would lead to some really interesting situations as the young Goku tries to deal with this new - found power and knowledge in his own time period.
One possible plot twist could be Goku traveling back in time to the Saiyan - Planet Vegeta era. He could try to prevent Frieza from destroying the Saiyans. This would completely change the course of the Dragon Ball story as we know it, with a much larger Saiyan population and different power dynamics.
One exciting plot twist could be a character from the Naruto universe who travels back in time to the Jedi universe and discovers they are actually a long - lost Jedi descendant. This completely changes their understanding of their own powers and heritage.
One possible plot twist could be Goku traveling back in time to train with his past self. This would not only enhance his own power but also change the course of his past battles. For example, he could teach his past self Ultra Instinct earlier, leading to different outcomes against foes like Frieza or Cell.
Another plot twist could be Zoro traveling back in time and finding out some long - lost secrets about his family or his swordsmanship heritage. Maybe he discovers an ancient sword - fighting technique that was lost in time. This could make him even more powerful and give him new goals in his journey. For example, he might want to find more about the origin of this technique and spread it in his own time.
A great plot twist could be that they time travel into the bodies of their younger selves but with their current godlike powers. They then have to deal with the reactions of their friends and family who don't understand what has happened to them, while also trying to use their new - found situation to prevent some future disasters.
Perhaps Tony travels back to a time before a key technology was developed in his world. He then has to figure out how to recreate that technology with the limited resources of the past. This could lead to some really interesting interactions with the scientists of that era. Also, he might accidentally introduce some future concepts that are far ahead of their time, which could cause a stir among the intellectual community. And if he changes the development of this technology too much, it could have a huge impact on the future he came from.
One exciting plot could be that Teddy and Lily travel back to the time of dinosaurs. They have to survive in a world full of giant reptiles and strange plants. They might discover new species that were not known before and their knowledge about dinosaurs could help modern science when they return to their own time.
One possible plot twist could be that Narukaka travels back in time and accidentally changes a small event that has huge, unforeseen consequences in the future. For example, preventing a minor meeting between two people that was supposed to lead to a great discovery.
One exciting plot twist could be Octavia traveling back in time and accidentally changing a key event that led to the creation of the Ark. This would completely rewrite the history of the 100. Another could be her meeting a younger version of herself and trying to guide her without revealing her true identity. It would create a lot of internal conflict for Octavia as she sees her younger, more naive self.
Well, the plot could be that Goku and Android 18 are sent back in time by a powerful enemy's time - warping device. They end up in a time when the Saiyan race was still thriving on Planet Vegeta. Goku, being a Saiyan himself, is conflicted about interfering with the past. Android 18, on the other hand, is more interested in finding a way back. But as they stay there, they start to realize that there are things they can do to make the future better, like preventing certain evil Saiyans from doing terrible things that would later have far - reaching consequences for the universe.
A really interesting plot twist could be that in the time - travel, Luffy and Zoro switch bodies. This would lead to a lot of comical situations as they try to adapt to each other's abilities. Zoro in Luffy's body would have to deal with the stretchy powers, and Luffy in Zoro's body would have to handle the three - sword style. It would also create some unique battle strategies as they fight enemies.