[Suzu]

They do already have an English and German version of the homepage though, which might still be a hint.
http://www.superhero-year.com/amazons/?language=d

The thing with the announcement was that they didn't give us any clear date. It just said something about 2017 and apparently, the package includes other Amazon Prime J-Drama as well, such as Baby Steps.
I hope we will get some news this month.