I may be completely losing my mind here, but wasn't there supposed to be a third villain-only subclass in the DMG? Am I completely misremembering that? I can't for the life of me think what it was supposed to be, so chances are I'm just high on Cheeese.
And it also suddenly occurs to me, looking at the TOC for the DMG, that it's not altogether clear where the sort-of-promised Kender and Warforged would go. Creating New Character Options on 285-290 seems likely, but that's not a ton of space to cover two races plus other content in any real detail.