Board Thread:Manga/@comment-27441457-20171108210024/@comment-1327106-20171110013225

I'd buy into the anime late growth spurt consideration more if Reiner also had a large growth spurt, but he only grew by 3cm. Yes, he's two years older  than  Eren and co. so he should grow less, but most readers won't know the that off the top of their heads (and as you said, anime teenagers tend to be exempt, so being 17 in 850 wouldn't stop a spurt if Isayama wanted it). And visually it would be weird if Reiner grew 3cm and someone like Armin grew 27cm.

At that point it would be distracting enough that the characters would have to comment on it because the reader would notice. Unless it's a plot point, it doesn't seem like something worth the panel space.

I suspect everyone in the 104th grew, but the height differences will be similar so when readers see them together again they will be able to tell at a glance who's who. Armin and Connie will still be on the short side, Eren in the middle, and Jean on the taller end (and I suppose for that reason, even if it's a ridiculous growth, I'll buy Jean hitting 190cm before the others, because if he's taller it won't change the visual look between him and the other members of the 104th by much, especially with Bert gone).