Who might Naruto meet in the 'Naruto Enters the Past' fanfiction?

Well, he could change the course of history. Maybe he'd prevent some of the tragedies that happened in the original Naruto story. For example, he might stop the Uchiha massacre by warning the clan or influencing Itachi in some way.

Naruto would meet his younger self. This would be a really strange situation. He could also meet all the important shinobi from the past. For example, the First and Second Hokage. He might have a chance to learn from them directly, instead of just hearing about them in stories. Additionally, he could meet some of the characters who were only mentioned in passing in the original story but had a big influence in the past.

He would most likely meet his father, Minato Namikaze, and his mother, Kushina Uzumaki. These are the two main family members he never really got to know growing up.

There could be a group of kids on the beach who are inspired by Naruto. They might approach him and ask for autographs or to show them some ninja moves. Naruto would be happy to oblige and in the process, he could discover a new talent among the kids that could be important for the future of the ninja world.

In Naruto Theatrical Version 7, the Lost Tower, Naruto traveled to the past and met with Watergate! This plot appeared in both novels and anime. The specific explanation was as follows: In Naruto Theatrical Version 7," The Lost Tower," Naruto traveled to the past in search of Sasuke. When he arrived, he found that he had become Naruto and Shuimen had become his teacher. Naruto and Shuizun grew up together and faced some threats from the past together. In the end, they successfully solved these problems and met again. In the novel, this plot was also known as " The Battle of Naruto and Watergate." In the novel, Naruto somehow traveled back to the memories of Watergate. When he arrived, he found that Watergate was dead, but he had left behind a device that could travel through time and space. Naruto used this device to travel back to the past and encountered the water gate there. Together, they faced the threats from the past and successfully resolved them. In the novel, Naruto and Watergate also had some exchanges and discussed their future in the ninja world.

He might meet an old acquaintance who is also alone. They could share their stories and perhaps find some comfort in each other's company.

Maybe some local tribespeople who have unique abilities or knowledge. For example, they could teach Naruto some ancient techniques or survival skills that are not known in the Hidden Leaf Village. There might also be wandering samurai or other shinobi from different regions who pass by the outpost and interact with Naruto.

Naruto might run into a group of rogue ninjas who are using the bunker as their hideout. This would lead to a confrontation where Naruto has to use his skills to defeat them and protect the village from their potential threats.

He could meet the Raikage. The Raikage might be initially skeptical of Naruto but could later see his potential. There are also other strong ninjas in Kumo like Killer Bee. Naruto might cross paths with him and they could have some interesting interactions, perhaps even training together.

In this fanfiction, Naruto might run into Arthas Menethil before he fully turned into the Lich King. It would be a very different kind of encounter compared to what he's used to in his own world. He could also meet Uther the Lightbringer. Uther might be curious about Naruto's unwavering will and Naruto could be in awe of Uther's connection to the Light. Additionally, he could meet many of the adventurers and common folk in Azeroth, each with their own stories and skills.