Often, in such fanfictions, Harry goes back in time and decides to focus on his magical education more. He might study spells that he didn't have time for in his original timeline. This could lead to him becoming a much more powerful wizard at a younger age. Also, he could use his future knowledge to expose secrets in the wizarding world earlier, like the true nature of certain characters or organizations that were hidden before.
One common plot development could be that Harry tries to prevent the events that led to his death in the first place. For example, he might focus on changing how he dealt with Voldemort. Another could be that he uses his knowledge of the future to form different relationships. He may be more cautious with some people and more open with others. He could also try to save the lives of those who died before, like Sirius or Dumbledore.
One interesting plot could be that Harry uses his knowledge of the future to help Snape avoid some of the bullying he endured. For example, he might warn Snape about certain Slytherins who would target him. Another could be that they work together to change some small events that have a big impact on the overall wizarding world's future. Harry might also introduce Snape to some of his future friends in a different context, like showing Hermione's intelligence to Snape much earlier.
Well, one possible plot development could be Ruby using her knowledge of future events to prevent certain tragedies. For example, she might stop the fall of Beacon earlier than it originally happened. Another could be her trying to change the relationships between the characters for the better. Maybe she'd make sure Weiss and Blake become friends more quickly. Also, she could work on improving her own skills faster by learning from her past mistakes.
A common plot development as time goes by in Inuyasha fanfiction is the growth of relationships. Inuyasha and Kagome's love story often progresses, with them facing and overcoming more obstacles. Another is the development of new powers. As time passes, characters like Inuyasha may discover new abilities or refine their existing ones. Also, the appearance of new villains or threats is common. These new challenges keep the story interesting and force the characters to adapt and grow.
One common plot development could be the reactions of other characters. For example, Edward might be consumed by grief and guilt, feeling that he should have been able to prevent Bella's death. Another could be the future of the child. Maybe the Cullens have to figure out how to raise the half - vampire, half - human child without Bella. And also, there might be flashbacks in the fanfiction, showing Bella's life before the fateful childbirth and how she was looking forward to the baby's arrival.
One possible plot development could be that Voldemort fully regains his power without Harry as an obstacle. The wizarding world would be plunged into complete darkness. His friends, like Hermione and Ron, might go into a deep state of despair and then form a resistance group. They would try to find other ways to defeat Voldemort, perhaps by seeking out more powerful magical artifacts or uniting with some previously neutral magical creatures.
One possible plot development could be how the wizarding world reacts to the loss of the so - called 'Chosen One' even as a baby. There might be widespread grief and fear among those who opposed Voldemort, as they had placed so many hopes on Harry. Another aspect could be how Voldemort's reign of terror continues without the threat of Harry Potter. He might become even more powerful and tyrannical, with no one to oppose him in the way Harry was prophesied to.
Well, perhaps Gohan goes back in time to save his father, Goku, from some early danger. He could then train alongside Goku when they were younger, leading to a much stronger Goku earlier in the timeline. This could also have a ripple effect on the relationships within the Z - fighters. For example, with a stronger Goku earlier, their battles against the Red Ribbon Army or other villains might be much easier and quicker.
One common plot twist could be that Naruko discovers she has the power to change not only her own fate but also the fate of the entire village. For example, she might prevent a major disaster that originally happened in the past. Another could be that she finds out a hidden truth about her family or a powerful jutsu that was lost in time. Maybe she realizes that a person she thought was an enemy in the present was actually a friend in the past and has to figure out how to reconcile that in the future.
A typical plot device is the discovery of a time - key object. In Oliver goes back in time fanfiction, this object could be a magical amulet or an old - fashioned watch that allows him to travel through time. This gives a clear reason for his time - traveling. Another plot device is facing a villain from the past. Oliver may have to outwit a powerful historical villain who is causing chaos in that era. And cultural shock can be a plot device too. When Oliver arrives in the past, he has to adapt to the different customs, languages and social norms, which can lead to some humorous or tense situations.
Well, sometimes in these fanfictions, a plot twist might be that Sirius goes back in time and discovers a hidden truth about his family. Maybe he finds out that there was a secret alliance or a hidden enemy within the Black family that was influencing events all along. This could completely change his perception of his family's past and his place in it. Also, he could go back in time and end up being involved in a different kind of magic that was lost in his original time, like an ancient form of magic that has the power to either save or destroy the wizarding world.