Meruem, what a great character. When it comes down to it, he has very much been the heart of this arc and Togashi's decision to apparently focus the rest of it solely on him was a great move in my eyes.
"The reason I came here is not complicated. There is, in fact, only one reason. I want to see Komugi. That is all there is to it."
The feels, man. The feels.
And, Pouf is dead. He dies knowing that the King as all but completely went over to the side of "human" and the Chimera Ant species is effectively "dead" now.