We’ve been waiting since, well 5th Edition, but it looks like we won’t have to wait for Christmas 2013. An apocalypse expansion for 6th Edition is said to be in the works. Possible for this summer (that’s July if you in the south half of Terra . It’s not clear if this will be a ground up rewrite, or another expansion for the original book. Let’s face is that means 4 pages of rules, hardly taxing. If you already have the original book you’re probably hoping it will clear up some rules and assets but not invalidate your existing book and be redoing all the formations.
Well your guess is a good as mine.