Not going to go into the "retina" display thing again, I've already made my point on that.
However, the MacBook Pro is more than ever supposed to be a "pro" level machine; meaning a machine that has more ooomph than the average MBA, designed for intensive work that a professional would do. Taking away the optical drive and Ethernet port would not help at all here.
Aside from that, what would you expect them to change, particularly for the 13" MBP?
The display is a disappointment for most, however.
If those are the specifications...100% won't bother upgrade. No true upgrade in performance or features (certainly don't need USB 3.0 or Bluetooth 4.0, as both never get used as it is).