Correct chapter.
Even if it's cool to see all these characters together, I'm not fan of this alliance (it was previsible). For me the manga cannot end without the total destruction/extermination of one of the two camps.
There is two scenarios I want:
First (my favorite by far): The Alliance is formed only to be BTFO by Eren. He has Ymir by his side.
Second:
alliance happens
alliance wins
nations of the world exterminate paradis and all subjects of ymir, proving eren's point
sasuga isayama
But I'm a little worried about how Isayama will end this.
Now Eren just have Historia and Floch (glad he is still alive lol) by his side. Wonder who is the mysterious person at the window ?