One common theme is redemption. Snape often gets a chance to rewrite parts of his past or change his actions. Another theme is the exploration of their relationship in a different time period. For example, how they interact when Hermione is younger and Snape is his usual self from that time.
The theme of love against all odds is also quite prominent. Given their different ages and the fact that Snape has a rather complex personality, their relationship is not easy. But in these fanfictions, time travel often serves as a catalyst to bring them closer, defying the odds and social norms of the wizarding world.
A theme that can't be ignored is the transformation of the characters. Hermione may become more vulnerable yet strong as she's about to be a mother. Snape, on the other hand, might soften his tough exterior as he takes on the role of a father - to - be. This transformation is often a central part of the narrative in snamione pregnant fanfiction.
There's also 'Time's Twisted Path'. In this fanfic, the time travel element is used to explore a different side of the Snamione relationship. It dives deep into their personalities and how they adapt to the new situation. It has some really engaging plot twists that keep you hooked throughout.
One common theme is changing the past. Fans often write about characters trying to go back and fix things that went wrong in the original 'The 100' storyline. Another theme is the exploration of different time periods within the show's universe. This allows for new settings and character interactions.
The theme of destiny is quite common. Ash may travel through time to fulfill a certain destiny that he was unaware of in his normal timeline. He could be the key to preventing a great disaster in the Pokémon world's past or future. Additionally, the concept of cultural differences in different time periods is explored. He experiences different training styles, values, and ways of life as he travels through time.
One common theme is changing the past. In these stories, characters often go back in time to prevent a tragic event in the supernatural world from happening. For example, they might try to stop a powerful vampire from being created.
One common theme is the use of modern military knowledge in historical battles. For example, a character might use advanced weaponry concepts from the present in an ancient war.
One common theme is redemption. Firestar often goes back in time to correct past mistakes, either his own or those of the clan. For example, he might try to prevent a wrong decision that led to a battle or the loss of a cat.
One common theme is self - discovery. As Castiel travels through time, he often learns more about himself, his purpose, and his place in the grand scheme of things. For example, in many fics, he realizes things about his past actions that he didn't fully understand before.
Power alteration is a frequent theme. When characters time - travel in Hellsing fanfiction, their power levels can change relative to the time period they are in. Also, the exploration of lost or forgotten Hellsing history is common. Time travel allows the story to dig into parts of the Hellsing lore that were previously unexplored. For instance, seeing how the Hellsing family started or what the first vampire slayers were like.
Saving the world or changing the future is also a popular theme. Since they have knowledge from different times, they may try to prevent disasters or change events that lead to bad outcomes in their original timeline. This gives the characters a sense of purpose and the story a lot of action and drama.