We now have information about the US Deluxe version of Deathly Hallows. It will be 816 pages long, 32 pages longer than the normal version.  The extras inside are:

Includes exclusive insert featuring near scale reproductions of Mary GrandPré’s interior art, as well as never-before-seen full-color frontispiece art on special paper. The custom-designed slipcase is foil-stamped and contains a full-cloth case book that has been blind-stamped on front and back cover with foil stamping on the spine. The book includes full-color endpapers featuring jacket art from the Trade edition and a wraparound jacket featuring art created especially for this edition by Mary GrandPré.

Go HERE for more information on each of the book versions.

Thanks Leaky!