Enter the Info Center
It looks like there's a (new to me) Wiki in English, Gineipaedia which I'm sure is much better than this dusty old thing.
The only details at the moment are rather sparse, but the first three volumes of the novels will be released from Viz Media's Haikasoru imprint starting in spring 2016 and more will be released depending on the success of the first three.
The anime/movies have been licensed by Sentai Filmworks but no further details are available at this time.
Viz Announcement. Sentai Filmworks Announcement.
Updated July 4th 2015
index.html / July 4, 2015