Totally agree, the only reason I listed them as 2K is because a couple of retailers gave the description "from 4K scans."
I received my copy of the SteelBook in August as well, so I assumed this was a re-release in 2K given the varying dates.

Either way you're correct, I'll make the changes.

The SteelBook and poster is referred to as "Special Edition"
The SteelBook with the Books and Cards is "Limited Edition," basically the same content as the Standard "Limited Edition," but with a Steelbook instead of the Scanavo Plastic Case.