What could happen in the 'Harry and Teddy go to alternate universe' fanfic?

It could be alternate versions of the villains from their own universe. For instance, an alternate Voldemort who is even more powerful. Maybe there are also new characters who oppose Harry and Teddy just because they are outsiders in this alternate universe.

It's possible that they would accidentally disrupt the timeline in the 'Harry and Teddy go back in time fanfic'. This could lead to all kinds of unforeseen consequences. They might create new threats or change the relationships between different characters in unexpected ways.

In the alternate universe, Harry could meet different versions of his friends and enemies. His relationship with them would be very different. For instance, Hermione might be a Death Eater or Ron could be a powerful dark wizard. It would be a huge shock for Harry to deal with these new identities of people he thought he knew well.

Ash could become a powerful villain in the alternate universe fanfiction. Maybe he has a different backstory that led him to the dark side.

One possibility is that the relationships between the characters are altered. Weiss might find that in this parallel universe, she has a closer bond with someone she was not as close to in her own universe, like Blake. They would have to adapt to these new relationship dynamics while also trying to figure out how to get back to their own universe if that's their goal.

He might meet different versions of his friends. For example, a Hermione who is a powerful sorceress ruling a magical kingdom. It would be exciting as he could learn new magic from her and be part of her adventures in this alternate reality.

In the fanfiction, it could be that Harry is taking Teddy away to protect him from something. There might be a new threat emerging in the wizarding world, and Harry, with his experience, decides to keep Teddy safe by leaving with him. They could end up at a secret location, where Harry starts to train Teddy in advanced magic, sharing all his knowledge and skills.

In this fanfiction, perhaps Harry and Ginny would teach Teddy all about his parents. They might share stories of Remus and Tonks with him. Teddy could grow up in a loving environment filled with magic and family values.

A Hufflepuff prefect could be the main character. They are responsible for maintaining order within the house and could be caught in the middle of a power struggle between the different houses in this alternate universe. They would have to use their Hufflepuff traits to resolve conflicts and keep the peace in Hogwarts.

Well, often in these fanfics, a major plot twist is the technology or magic system. In the RWBY universe, Dust is important. But in the alternate universe, it could be that Dust has no power, or it has some completely different and unexpected effect. And the semblances of the characters might change drastically. Say, Yang's ability to absorb damage and use it as strength could turn into something like the ability to heal others instead. And then there's the world - building aspect. The alternate universe could be a post - apocalyptic wasteland instead of the somewhat civilized world we see in RWBY, which would be a huge plot twist for the characters to deal with.