I recently received the above blu-ray, it was released 7th of December as part of a new "Scifi Poster Edition" series (same discs, new artwork). I thought I was getting the 2018 Remastered 2 Disc Bluray (which I think is OOP but is included with the 4K BD) but in fact have the 2007 blu-ray.
I first thought "it's just a re-release of the 2011 blu-ray" and I got it wrong, but the slipcase says (no mention of this on the bluray case itself):
"RESTORED & REMIXED 5.1 AND ORIGINAL 1968 THEATRICAL AUDIO FORMATTED FOR 5.1"
The blu-ray only has English DD5.1 and English PCM, which are exactly what my 2007 blu-ray has. The "1968 theatrical 5.1" is nowhere to be found. The Remastered blu-ray from 2018 has two DTS-HD MA tracks. I thought it was odd the Amazon cover art states PCM (but figured it's pre-release cover art).
The blu-ray disc itself is the same blue colour as the Remastered release (it's not the same physical disc as the 2007 release) and cover art for the actual case is also the same cover art as the 2018 Remastered edition.
It's also only 1 disc. The Remastered 2018 release put the extra on a separate DVD-9 to make room for a significantly higher bitrate
Lastly going by this DVD Beaver comparison, the MGM logo is much closer to the Blue here:
http://www.dvdbeaver.com/film/DVDReview/2001.htm
Someone at Warner messed up