Yes, unfortunately, Kurama passed away in the manga. This occurrence brought about a lot of changes and emotions for both the characters and the readers.
For Naruto, it would be a whole new experience. He'd be constantly trying to communicate with the mecha Kurama, learning its quirks. Shikamaru might be the one thinking about the strategic uses of mecha Kurama in battle. He'd be coming up with plans on how to best utilize it. As for Kurama, he could be in an internal struggle. Part of him would want to stay relevant in Naruto's battles, while another part would be curious about this new mechanical version of himself and how it could help Naruto in the long run.
Ni Mantian of Hua Qiangu died in the end. He had been killed by Bai Zihua during the final battle. To be more specific, Ni Mantian had always had complicated feelings for Hua Qiangu during the emotional entanglement between Bai Zihua and Hua Qiangu. However, in the final battle, in order to prevent Hua Qiangu from obtaining the power of immortality, he had sacrificed his life to fight with Bai Zihua and was eventually killed by Bai Zihua.
Well, in some fanfic concepts, Kurama might release Naruto's potential by sharing its own chakra in a more direct and unrestricted way. Maybe it could be like a full-on infusion of Kurama's power, which then unlocks hidden abilities within Naruto that were previously dormant due to Naruto's own self - imposed mental blocks or lack of proper training to handle such power.
Hinata is a character from the Naruto series. She is a member of the Hyuga clan, known for her gentle and shy nature, yet she is also very strong - willed. Kurama, on the other hand, is the Nine - Tailed Fox, a powerful and feared entity that has a long history within the Naruto world. In this fanfiction, their meeting would be an interesting and unexpected event.