Just received this good news from PGX Comics regarding The Outliers:
We could include the dust cover in between the inner and outer holder so yes we certainly could. Please make a note about wanting this when you send the books in.
From what I read in one of the forums, CGC has said they won't include the dust-cover, so this is really good news if you want to have the book slabbed intact with the dust cover.
I'm going to send a handful or two of books in early next month (still waiting on some deliveries). I'll update this post with pictures when get them back from PGX.