Okay this is a theory. Whenever a repackage occurs (steelbook, hmm, bonus or not) BBY has a different SKU and "release date"
See the top two:
Pretty sure the 11-6 release has HMM and DC.
This was similar with the Madagascar 3 wig or rise of guardian hmm versions.
I noticed that too...as well as the ridiculous price tag.
If that edition DOES include digital copies, I'm going to be quite aggravated. The fact that between the last digital copy release prior to May 2012 and this "new" release, people bought that set, whether at full retail or Amazon/BBY deals, and got no extra.
I just finished emailing wbdigitalcopy.com's support team regarding the issue (they didn't have the option to ask a question about the entire set, so I had to choose each individual ExE movie and send different emails...).
Hopefully they're as helpful and eager to assist as BBY's Reward Zone customer service, for example. Not sure if they have their hands on the vouchers anywhere, or if they'll be clueless and unhelpful, but im hopeful. I really would like those digital copies.