Ohhh okay. I figured he was a zombietech something or other.
I read Matt's "sort of" addendum as meaning he's not quite a warcaster. That, coupled with the statement that he's an entirely new character, makes me think it's a character journeyman 'caster for Cryx. That, in turn, makes me think all the other factions are probably getting character jr casters. Cygnar will still be special having a regular jr, but the other factions will have access to something similar.
If that's not what he means, I don't know why he would say it's "sort of" a warcaster. I suppose he could have meant it's a sort-of-cryx warcaster, which would implicate something like allies for Cryx a la Church of Morrow getting their own caster. Cryx's version of that would be the cephalyx right? They're not human, are they...?
Some of you are talking about priests of Toruk. That would also be cool, and would make sense of the "sort of" comment.