Wow. That's an impressive piece of graphic design. It retains all the significant aspects of the present logo, but does them one better.
It's hard to imagine anyone would prefer the bland, smiling Indian to the bold, dynamic raptor. A good test would be showing the two logos to people who aren't familiar with the Blackhawks. I wouldn't be surprised if they chose the bird over the human 10-1.
In fact one brilliant 6th grader said, "You know the Bears used to be the Cardinals then the Steel...." I was shocked he knew the history and made a connection that things can be changed very easily.
For more on the subject, see "Authentic" Chiefs from "Blackhawks" Tribe, Blackhawks Foe Waves Severed Head, and Blackhawks Know Nothing About Black Hawk.