The other big difference is the spine. The recent hardcovers have ROBERT JORDAN written horizontally at the top of the spine, then the Wheel/Snake logo, then the title and BOOK XX OF THE WHEEL OF TIME written vertically underneath it. I believe the US ones just have the individual volume title and that's it.
On the spine, yes, there's only the individual title. On the actual cover, it has the "book x of the wheel of time" in the bottom corner.
-Fantasy-
Lady of the Lurkers
Lady of the Lurkers