Board Thread:Manga/@comment-30064439-20161113032209/@comment-29463491-20170829084215

The difference is the impact it would get on Eren, and indirectly us. There's a really huge chance for Historia to be the sacrifice because she is the only way Eren could access the coordinate, the only way we know so far requires Historia to be transformed into a pure titan. Based on what we've seen, we know both of them are close as they trust each other deeply and another reason why Eren hesitated to tell the SC of how he could use the coordinate during his encounter with the Smilling Titan. Having Eren to be as close as possible to Historia should do the trick as Eren will eventually have to tell the SC about it. If Eren fail to find another way to use the coordinate, then they won't have any other choices but to sacrifice Historia...