The discussion about Sony's big new box set announced on StarWars.com including the differences between the CD and Digital / Vinyl version is happening over in the thread for that release:
This is the thread for the Blu-Spec CDs only. And to answer your question about a release in North America, I put links to the US Amazon listings right in the main post of this thread!
I am confused by the release of the blu spec CDs from Japan. This one for EMPIRE states 1-CD. Does that mean we get the OST presentation? STAR WARS and JEDI also state 1-CD. Has anyone heard these particular releases yet? Can anyone verify? Very little information seems available...