In a Harry Potter fanfic where past meets future, it often works through time - travel magic. For example, a character might use a Time - Turner or some other magical device to journey from the present or future to the past. This can create all sorts of interesting scenarios. They could meet their younger selves, or change events that were thought to be set in stone. It also allows for crossovers between different generations of characters, like Harry meeting his parents when they were at Hogwarts. This kind of plot device can bring new perspectives to the well - known Harry Potter universe and open up a whole new world of storytelling possibilities.
In 'past meets future' Harry Potter fanfics, a major theme is the clash of different magical cultures. The future might have a more evolved form of magic, and when it meets the past, there are conflicts and also new understandings. Another popular theme is the power of friendship across time. Characters from different time periods form bonds that help them overcome challenges. And then there's the theme of self - discovery. A character going to the past or future might learn something new about themselves that they wouldn't have known otherwise.
The idea of past villains resurfacing in the future in a different form is also fascinating. Maybe Voldemort's ideology gets reincarnated in a new dark wizard, and the heroes from the past and present have to team up to defeat this new threat. This would show how the past and future are intertwined in the fight against evil in the wizarding world.
Hermione Granger is also a likely character. Her intelligence and love for knowledge could lead her to discover a way to bridge the past and the future. She might use her Time - Turner knowledge or find some new magical method. And she could play a key role in helping past characters adapt to the future or vice versa.
Well, if Harry goes back in time, his actions could have a huge impact on the future. For example, if he saves a character who was supposed to die, it could change the entire story. Maybe he saves Cedric Diggory in the Triwizard Tournament earlier than he should have. This could lead to Cedric having a major role in the fight against Voldemort later. Also, if he changes the relationships between characters in the past, like making Snape and Lily closer friends, it could change Snape's attitude towards Harry in the future.
Well, it could be really interesting. Maybe the past BTS members would be in awe of how far they've come in the future. They might learn new dance moves from their future selves or get inspired by the music they create in the future.
In such a fanfic, Dumbledore might be astonished by how much Harry has grown. Maybe Harry has new magical abilities that Dumbledore had not foreseen. He could share his future experiences with Dumbledore, like how the wizarding world has changed in the years to come. This could lead to Dumbledore making different decisions in the present to better prepare for the future.
Probably the younger or past versions of the members. They would be seeing all the things they have achieved and how they have changed. It would be like looking into a crystal ball and seeing a very successful future version of themselves.
Honestly, it's hard to say. Dumbledore would be amazed at Harry's future self, but Harry would also be taken aback by seeing Dumbledore in a different time. It could depend on the circumstances of their meeting. If Harry comes back to a time when he thought Dumbledore was dead, then he would be extremely shocked. On the other hand, if Dumbledore has been expecting some sort of time - traveling encounter, he might be less surprised than Harry.
Obviously, Harry Potter himself could be involved. He might be a mentor figure in the future, passing on his knowledge and experiences to the new generation. His children, if the fanfiction extends to that, would also be key characters. Hermione and Ron could also play important roles, perhaps as educators or as important figures in the wizarding government. Neville Longbottom could be involved too, maybe as a herbology expert who is helping to develop new magical plants for the future wizarding world.