It's been a long time in the making and now finally released. Based on Debian Testing with Xfce and oodles of great programs for producing audio and video including the excellent KX Studio repositories and core apps such as Cadence and Catia.
They have also produced a comprehensive 84 page manual.
I'll be trying it very soon.
http://www.bandshed.net/2016/03/23/avl2016/