Hm, I don't think there is another enemy, but we will see a different culture in a 'far away' country, sure. I think Princess Kaguya wanted power to invade her own country. That's why she ate the fruit and used MT. To create Shiro Zetsu. In the end Shiro Zetsu are clones of Shinju, even though their quality is low.Seems like it. I said it another thread, but this seems like Kishi's way of foreshadowing another enemy in the future. So perhaps the manga isn't as close to being over as we think.
In the next chapters Kaguya will kick some asses, then she will teleport to her old 'home' and Naruto and Sasuke will meet Kaguyas folks~ guys with horns and byakugan.