The new perrin artwork really makes me want to have that cover on the front of a heavy, tangible, hardcover book. From what I understand though, it's only available on an Ereader. Is that correct? Will it ever come to the physical books?

I really like the ebook art as well. Unfortunately there is some sort of contract with Mr. Sweet that says that Tor will use his covers. I think it will be a long time before the ebook art is available on real books. Furthermore, they are only fronts, not whole covers.