The one change that we will be mandated for 2012 is a different style center in the wheels for t/f and f/c. The new centers are designed to put all the stress on the hubs instead of the studs. This should keep us from shearing off wheel studs. I don't know what their next step will be as far as slowing us down.
Went to qualifying today and did some poking around. 2 of the Force cars and about half of the schumacher cars have it, that I could tell.
Old, traditional design
New Design: