Yeah, they do. In the first episode there was a sign that labelled the area outside the walls as the "Giant Field". Not referring to the size of the field, of course.
Also, I saw Sawano tweeted this pic:
https://twitter.com/sawano_nZk/statu...12747865051136
You can't see much but it looks like there's some minor differences in the tracklist he has. Like the first track you can see it doesn't say "attack" but "əˈtæk" and in the fifth track the "o" is accented. I wonder if it will be printed that way or not.
Edit: Apparently so. Now it looks even more like a Sawano tracklist.
http://www.shingeki.tv/music/soundtrack.php