Well, aside from Naruto, Sasuke, and Sakura, Kakashi Hatake could also play an important role in this fanfiction. He is their teacher, and he might guide them through their experiences of seeing the future. He could help them understand what they see and how to use that knowledge to their advantage in the present.
Well, the Jedi are obviously main characters. It could be well - known Jedi like Obi - Wan Kenobi or Yoda. They would be the ones using their connection to the Force to watch the future.
In 'harry destroys the future fanfiction', Harry is the central figure. But there could be other characters as well. Dumbledore might play a role, perhaps as a guiding force in the past whose absence or misinformation in the changed future has led to the chaos. Voldemort or his followers could also be involved, if Harry's actions are somehow related to the remnants of the dark side. And Neville could be there too, as he has always been an important character in the Harry Potter universe, and his actions might be intertwined with Harry's in this fanfiction.
Naruto's children would likely be main characters. They would inherit his strength and determination. Also, the students of the new generation of ninja academies could play important roles as they strive to make their mark in a world shaped by Naruto and his peers.
It could be Harry Potter's descendants. They might inherit his courage and magical abilities and be the main characters who navigate the encounter between Hogwarts and the future.
I don't have enough information to say for sure who the main characters are. It would depend on the source material it's based on.
Well, Naruto is most likely still one of the main characters. Since it's a Naruto - related fanfiction, he would be central to the story. Sasuke might also be a main character as their relationship has always been a crucial part of the Naruto universe. Sakura could also be there, as she has been an important part of the original story and would likely play a role in this future - oriented fanfiction.
A young scientist would be a great main character. They could be curious about what the future holds for their research and accidentally stumble upon a way to travel to the future. Their scientific knowledge would help them understand the new technologies and concepts in the future world.
There might be an old sage - like character who has a vast store of memories and uses them to mentor the younger characters in dealing with the future. They could provide wisdom based on past events and how they might repeat or change in the future.
The main characters are clearly Klaus and Future Hope.