User blog comment:NeoSuperior/Chapter 55 predictions/@comment-71.174.253.115-20140306191920/@comment-12642484-20140306212627

Darius does not seem to be a bad guy. I actually think he is the only person left with the power to prevent the Survey Corps from being disbanded. He is actually shown in the Levi Spin-Off, saying things like "Sorry, Erwin I cannot help you with that, because the higher ups are in the way". Also he did not decide against Eren going to the expedition. I think it was made quite clear though, that he is the one that decides "what is good or bad for humanity" and that kind of thinking is probably, what will decide his actions in the uprising as well. So he may actually help Erwin, as Erwin himself seems to put humanity's existence above all else himself.