Simple answer: No.
Long Answer: Minor (internal) changes only.
Im not entirely sure what people are expecting them to change
Airflow = perfect
Hard-disks = could go to 8 bays/space for SSDs
Other than that, nothing.
It is gorgeous...except for one little thing. The power cord covers up the ethernet connection port. Sooooo, because of a modem being out (awaiting a new one), I cannot have internet access AND power at the same time, which means, a pain in the butt for the power situation. Come on, how stupid is this? I'm a two decades plus Mac user and just got my mac pro and cannot believe someone didn't twig to this.