Board Thread:Manga/@comment-26056057-20160509020829/@comment-24407809-20160511005711

Tausendberg wrote: Ok, I think we need to divide the dumb dumb titans into two groups...

We have dumb dumb titans that Zeke created and then "wild" dumb dumbs that are within Wall Maria previous from Zeke. Like seriously dude, we have ZERO evidence that Zeke can turn dumb dumbs back into humans. ZERO.

The more likely speculation, especially since the Quad references a base that the SC has passed, is that Reiner and Zeke killed all of the 'wild' dumb dumbs near Shiganshina and then ordered his 'warriors' from the Homeland to leave the base and get into a semi-circle after the SC was in Shiganshina. We may have zero evidence that Zeke can turn Titans back into humans, but there was also a time when we had zero evidence that Reiner could transfer his memories into his spine so that he could survive getting his head blow off. There was also a time when we had zero evidence that Eren could control Titans with the Coordinate (or that the Coordinate was a thing). My point is that Isayama has a habit of inserting new powers into his story at the drop of a hat, so we shouldn't rule anything out.