
Source: http://shingekikyojin.net/archives/50194568.html
Next month’s Bessatsu Shonen Magazine (2017 August Issue) will include an interview with Isayama Hajime, in which he will talk about the direction of story toward the last chapter of Shingeki no Kyojin.
If they say so… that means we are really approaching the end of this series… soon.