So I noticed this on Amazon the other day ... all the sets are being "released on April 3, 2012" ... no images, but all are $39.98 and say they star Jonathan Frid and Grayson Hall.
Amazon has dropped the price on these to $26.99, but walmart has them up for pre-order, too. Lowest price I've seen for these new sets: $24.96 (38% off list price)
I'm pretty sure it will be the exact same content and number of discs as the former sets, just slimmer cases and new artwork.
They're not showing the new artwork, but they do give the specifications:
Product in Inches (L x W x H): 5.5 x 0.5 x 7.44
So according to them, it will be 1/2" thick.
They also give a description of the product and the special features.
Sounds the same as the previous release.
Here's the link:
http://www.walmart.com/ip/19862618