Hey all, I came across this on http://www.warseer.com/ Supposedly it's a new Defiler type called the Soulgrinder supposedly due out with the new Chaos Codices coming up this year.
Flesh Hounds, pic also lifted from Warseer.
Bloodcrusher (bloodletter on juggernaut)
In fact, there are a TON of pics on this thread. This blew my mind.