There are lots of leaked images here revealing a few of the new formations and special rules for the Black Legion Chaos Marines. Here are the latest leaks in full, including some new psychic powers.
via Bill Fahey from Warrnambool Gamers Guild
Warrnambool Games Guild
https://www.facebook.com/groups/638046819625681/photos/
Direct Link to the images
https://www.facebook.com/groups/638046819625681/photos/
Here is an example, with lots more at the links.
Another Direct and easier link to see them
http://imgur.com/a/EAPhU
