I believe the new stuff is a commentary from J.J. Abrams, 4 or 5 new featurettes (some of which were retailer exclusives) and 2 or 3 new deleted scenes.
Huge week for me. Better Call Saul: Season Two, Dead Ringers, Finding Dory, Phenomena and Star Wars. Man, this week is so big that it's like the golden age of DVD.
Thanks for the prices, Mike! :)