[Predictions] What will happen in the coming weeks

[Young Vongola]

Notice how Minato suddenly seems so full of remorse in recent chapters? It's because he's about to disappear. The fact that Kishi is making him reflect on his "mistakes" now is because he is about to find closure and be released of the Edo Tensei just like Sai's brother and Sasori.

While he's fading, he'll give Naruto the rest of Kurama's chakra and say something cheesy like "Happy Birthday, Naruto" and disappear entrusting the shinobi world to his son.