A major theme is the power of knowledge. Since the time traveler has knowledge of future events, they use it to their advantage to fix things. Also, the theme of fate versus free will is often explored. Some stories show that despite the time traveler's efforts to change things, fate still has a way of working things out in a similar way, while others show that free will can completely rewrite the future. In addition, the idea of self - discovery is common as characters often learn more about themselves when they go back and face their past.
One great 'Harry Potter Time Travel Fix It' fanfiction is 'A Time to Change' where Harry goes back and changes key events. It has a really interesting take on how his knowledge of the future can be used to prevent tragedies.
The idea of time travel as a form of spiritual journey could be explored. In the Hobbit universe, time travel might not just be about physically moving through time but also about the hobbits connecting with their ancestors on a deeper, spiritual level. For example, a hobbit could travel back in time and meet an ancient hobbit sage who imparts wisdom that is crucial for the future of the Shire. This would blend the fantastical element of time travel with the rich cultural and spiritual aspects of the hobbits' world.
Perhaps they could have used time travel to team up with alternate versions of themselves. So, the Avengers from different timelines could combine their powers and knowledge to come up with a better plan to stop Thanos. This would involve not just fighting him physically but also outsmarting him in terms of his knowledge of the Infinity Stones.
One way to improve the plot could be by making the time travel rules more consistent. For example, if the hobbits can travel back in time, clearly define the limitations and consequences of such travel. This would add depth to the story and prevent plot holes.
In Marvel Universe fix - it fanfiction, time travel often involves using devices like the Time Stone or advanced technology. For example, characters might use the Time Stone to reverse specific events that led to a tragic outcome. They can create alternate timelines where they fix mistakes. It's a way to rewrite the narrative and give beloved characters a better fate.
Time travel can make Thor more self - aware. When he travels through time, he sees his past mistakes more clearly. For example, if he goes back to his brash and arrogant days, he realizes how his actions led to problems later. This makes him more humble.
One popular plot twist could be Loki going back in time and preventing his own fall from grace in Asgard. This would completely change the course of his story and his relationship with Thor and Odin. Another might be Loki using time travel to stop the events that led to Ragnarok, saving Asgard in a different way than was originally shown.
One popular 'time travel fix it fanfiction' is about a character going back in time to prevent the death of a beloved hero. In this story, the protagonist uses their knowledge of future events to change the course of history and save the day. Another great one involves a time - traveler fixing a broken relationship that led to a disastrous future for a group of friends. They go back and make different choices to ensure a happy ending for everyone.
One great Stiles time travel fix - it fanfiction is 'Time's Redemption'. In it, Stiles goes back in time and manages to prevent some of the worst tragedies from happening. Another one could be 'Stiles' Time - Twisted Fix' where he uses his knowledge of future events to make things right in the past.