I follow them on Facebook and they havent said much, but they posted this on March 26:
"Dear friends, fans and Facebook followers, we’d firstly like to say sorry for the recent lack of updates. There is, however, a very good reason for the relative silence, and it’s called earning a living! Both documentary director Josh, and Greg - author of the accompanying book (see FB page link below) – work full time in the film production and publishing industries respectively. The documentary and the book are purely labours of love being painstakingly put together during spare time and with almost zero budget.
The good news is that progress is being made, even if it’s all been behind the scenes lately. The documentary footage is now 50% edited and all the basic research for the book is complete. We still don’t have final release dates etc. but rest assured that work continues as quickly as other responsibilities permit, and that more than anyone else in the world, we want to see both the documentary and the book released as soon as humanly possible! In the meantime, we very much appreciate your continued support. Thrash or be thrashed!!!"