It's kind of amusing how the Arizona renaming is brand new information to posters on other boards. Come out from under that rock.
It was mostly discussed on two boards-- this one and BOH. If you don't frequent either one, you probably missed the announcement that it was agreed to last year. NHL Talk forum had a couple threads on it regardless:
the only thing I didn't like about the black alternates was the template. Specifically the swooping red areas on the sleeves. I think the yotes look better in black overall. I think they could make a new alternate that is black in a more old school template with the coyote head.