There is always one study out there that will prove a point, but that is completely irrelevant, it's the concensus among studies that counts. You can always deny that speed kills, but you're still wrong.
Just wait and see. The total number of crashes will go up marginally, not much, but the % increase of fatal crashes where the cause is determined to be the loss of control will be higher than the total crashes increase.
The increase is only 5 mph. It should be noted that the average traffic speed will increase by less than 5mph, probably around 3 mph. The same relation has been observed when speed limits are reduced.
This is what a hundred studies have proven.