Here's a full rundown of what the set includes:
A box of selected work by director David Lynch including Eraserhead remastered edition, the Eraserhead CD soundtrack, The Short Films of David Lynch, Blue Velvet with a newly remixed 5.1 track by David Lynch, Wild at Heart, The Elephant Man, the animated serial Dumbland, and making its DVD debut, Industrial Symphony No. 1: The Dream of the Broken Hearted.
In addition will be a Mystery Disc -- including several exclusive Lynch originals. Also included in the set will be original Lynch extras not before available on previous DVD editions. Finally, set includes a booklet featuring rare Lynch imagery.

A HUGE thanks to the awesome David Lynch fan site Dugpa.com for the heads-up on this set.
For all your David Lynch/Twin Peaks needs (DVDs, CDs, books), visit the David Lynch/Twin Peaks Online Store at Amazon.