I don’t think the bishops have any choice in this. It is coming from the Vatican.
Any priest who is worth his salt would be really, willing and most anxious to execute these changes in celebrating the Mass.
The Vatican is 6,000 miles away. Cardinal George, arguably the most influential American bishop, allows flagrant liturgical abuse of the current norms, as shown in the attached video http://marysanawim.wordpress.com/2010/04/14/more-pfleger-heresy-holy-thursday-2010-eucharistic-prayer/
Why do you believe he will enforce the new norms?