In this fanfiction, perhaps the child is Naruto's own. Maybe he had an adventure away from Konoha and met someone special. The child could be a symbol of his growth and newfound family. He returns to Konoha with the child to introduce it to his friends and show how he has changed.
It's possible that the child is an orphan Naruto found. Naruto, having known the pain of being alone as a child, decides to take the orphan under his wing. He brings the child back to Konoha to give it a home and a family within the village.
Well, one possibility is that Naruto's son is very powerful and has unique abilities. When they return to Konoha, the villagers are both amazed and a bit worried about this new generation of power. Naruto might have to deal with the elders who are cautious about his son's potential. And his son could start making friends quickly with the kids in Konoha, like Boruto did in the original series.
In this fanfiction, the Naruto family might be welcomed back with great joy. The villagers could hold a big celebration to honor their return. Naruto, as a hero, would finally be home with his family in Konoha, and his kids might start exploring the village that their father has so many memories of.
Well, it could be that Naruto has found a way to tap into some ancient and forgotten power source during his time away. So when he comes back to Konoha, he's not only physically stronger but also has a deeper understanding of chakra and how to manipulate it. He might start by showing off his new skills to his old friends like Sasuke and Sakura. And then, he uses his strength to improve Konoha's defenses, such as creating new barriers around the village using his enhanced chakra control.
The 'naruto returns to konoha fanfic' might focus on Naruto's relationships. For example, his relationship with Sakura could be explored further. He might come back to Konoha and realize his true feelings for her, or there could be some unresolved issues between them that need to be sorted out. Also, his bond with Kakashi and the other villagers would be re - established in a new light, as he has changed during his time away.
One possible plot could be that Naruto has been on a long and secret mission. During this time, he met someone and had a child. Now he returns to the village with the child, and the villagers are both shocked and curious. His friends, like Sasuke, might be initially skeptical but then come to accept the new situation. The child could also have some unique powers inherited from Naruto, which could lead to various adventures as they try to figure out how to control and develop these powers.
It could be a rogue ninja who has been secretly building power while Naruto was away. This rogue ninja might have a vendetta against Konoha and sees Naruto's return as a challenge to his plans. So he directly confronts Naruto to prove his own strength.
He might feel really sad and isolated. Naruto has always loved Konoha, so a cold welcome would be a huge blow. He could end up leaving again, this time for good.
Well, it could be about Naruto coming back to Konoha with some new powers related to the golden fox. Maybe he uses these powers to protect the village from a new threat.
Well, perhaps Naruto comes back with some super - strong new jutsu that he learned during his absence. He might show off his new power to his old friends and foes alike, leaving everyone in awe.