Survival and hope are also prevalent themes. Since the original Attack on Titan story is quite dark, in alternate endings, fans often write about how the characters find hope in the most desperate situations and strive for survival in different ways. For instance, they might find new methods to deal with the Titans or new ways to build a future for humanity that doesn't involve constant bloodshed.
There could also be an alternate ending where the Titans are revealed to be part of a much larger, more complex experiment by an ancient civilization. The characters in AOT then have to work with the outside world to not only stop the Titans but also to deal with the implications of this discovery. This ending usually involves a lot of world - building and exploration of the lore behind the Titans, and it can be quite interesting as it gives a whole new perspective on the story.
Redemption is a common theme. As I mentioned before, some fanfictions focus on Amy's redemption. She might try to make up for her wrongdoings and seek forgiveness from Nick. Another theme is justice. Many alternate endings deal with the idea of Amy finally getting the punishment she deserves for all her lies and false accusations. This gives a sense of closure to the readers who might have felt that the original ending was too lenient on her.
One common theme is redemption. Often, the OC is used to give Bertholdt a chance at redemption for his actions in the original series. Another theme is friendship. The OC forms a strong bond with Bertholdt, showing a different side of his personality.
A very common theme in AOT time travel fanfiction is redemption. Characters who made mistakes in the original storyline get a chance to go back and make things right. Also, the exploration of alternate timelines is quite popular. Writers like to show how different choices made during time travel can lead to completely different outcomes for the AOT world. It adds an element of mystery and 'what - if' scenarios that readers find really engaging.
One common theme is physical injury during battles. Given Levi's role as a strong fighter in AOT, fanfictions often explore scenarios where he gets seriously injured in combat, like being wounded by Titans or in fights with other humans. This could lead to his comrades having to take care of him, creating moments of vulnerability and bonding.
The theme of redemption also shows up. The Winter Soldier may see his time in the AOT world as a chance to atone for his past actions. He uses his abilities to protect the people in the AOT world, and in doing so, he starts to find a sense of purpose and redemption that he may not have had before.
One common theme could be friendship. In the context of AOT, characters might use tickling as a form of friendly interaction among comrades. For example, the Survey Corps members might engage in tickling as a way to relieve stress after a tough mission.
The ending of AOT manga features a series of events that bring closure to the story. However, it left many questions unanswered and sparked a lot of discussions among fans.
Power exploration is also a big theme. Different dimensions may have different power systems. So, Naruto has to learn about new types of chakra or abilities. In some fanfictions, he might even combine his original powers with the new ones from the alternate dimension. This can lead to really cool battles and power - up moments. Another common theme is friendship. Even in alternate dimensions, Naruto still values his friends. He might meet alternate versions of his friends or make new ones. The relationships he forms and how they help him through difficult situations are often explored in these fanfictions. It adds an emotional depth to the stories.
Well, a very common theme is power dynamics. In the alternate universes, the power balance between the vampires, werewolves, and humans can be completely different. For instance, there could be a world where humans have developed a way to control vampires. Another theme that often shows up is the exploration of different timelines. This can lead to different outcomes for the characters. It might be that Bella never moves to Forks in one timeline, which then changes everything we know about the story. There are also fanfictions that focus on the moral aspects of being a vampire or werewolf in a new and different context.