Is anyone really expecting to be shocked by the Macbook Pro redesign ?
The new 12" Retina Macbook is very much informed by the existing Air design. Same wedge shape, as time marches on Apple marches to thinner, lighter and smaller.
On this page Apple compares the 13" retina to the CD model :
http://www.apple.com/ca/macbook-pro/design-retina/
" the 13‑inch MacBook Pro with Retina display is 25 percent thinner and 20 percent lighter than the 13‑inch MacBook Pro without a Retina display."
Lets apply the same thing. Or take the percentage saving going from the non-retina macbook 13/11 to the 12. Take that percentage and slim down the pro the same way. I bet the pronounced "under curve" cheat will be mostly gone. Reduce the weight by the same - likely 3.5 pounds to 2.9 pounds for the 13".
Give it USB C, the new keyboard, the force trackpad. Give it the 3 colours.
Not discounting the engineering all this requires at all, and yah the devil is in the details, but radical redos of Apple hardware are very rare.
What sucks is waiting for the inevitable.