I found these mockups on the ubuntu forum.
These mockups look like the perfect KDE 4 themes to me, they remind me of current Oxygen themes, but nicer. I don't have the talent or knowledge to make a theme at all, much less this nice. I hope someone else falls in love with these mockups and decides to make a theme based on it!!
kimmik made a gtk/metacity theme based on these mockups, but not quite the same in my opinion.
If anyone likes the idea of this theme please let us all know by saying so in a comment. Thanks!