New Spoiler in Martinsville

NASCAR is finally going to put the old style spoilers back on th enew style cars at Martinsville this weekend. It should prevent cars from going over when the cars get turned around backwards. But I have another theory: Is the new spoiler going to throw some teams for loop as the aerodynamocs could be changed at the rear end of the car and some shock packages may need changing. eIs Jimmie Johnson going to be as dominant as he is now? Or is he going to flounder and other teams come to the forefront.