I will put a blurb in the 5th ed list when I work out the math.
Edit: Benathai are in, Masques are back, and I am working on some fluff. Should be up tomorrow if not my day goes wrong.
Edit: 1.1 is up, including some basic background, Masques, Benathai, and the lost weapon-options of the Solitaire.
THe Masques, if you didn't know, were part of GW playtest-codex before the #39-list, and I have had to tweak them a bit as some of the mechanics they used to modify are now gone. They have also been significantly toned down.