Im not sue if this digital download version will include any english.
Sprache: deutsch
So im not sure but they confirmed there that the release date is the 12 of november thats in 3 days now.
And im sure if in real stores the german version will have english voices so this one too.
http://www.gamesload.de/gray-matter/news/#news_1
I bought some games on this site and downloaded from there.
So i think we all should track and keep an eye on this site.