Ryder said:
I don't think they'll do Unaligned CSM legion archtypes beyond Alpha Legion and the Iron Warrirors, what exactly is their in a word bearer that can't properly be replicated by a Champion?
Its not going to just be, Generic Legion Dude. Its going to be iconic members of that legion. So for Thousand Sons, its the Sorcerer. For Word Bearers, it'll be the Nega-Chaplain. And its valid to want a Dark Chaplain or whatever they're called to be something special, as they're the only Chaplain type to have survived their legion intact, and are the ones that define the Word Bearers.
All of the loyalist founding chapters and several successor types deserve their own writeups, so all the chaos legions deserve their own specialty things. They should have abilities that are serious business.