If there are descendents of people in, say, one million years from now, they will not have wisdom teeth.
Granted, it's a bit hard to test with present technology..
But, it's easily seen to be true: Once in a while, even with modern dentistry, someone of breeding age or less, dies from an infection that started with a bad widsom tooth. His or her genes do not get passed on. Since it is a fairly rare event, selective pressure is low, but it's still there.
IS there any ID or Creationist reason this prediction should not be true?
Since God created man in His image, God has wisdom teeth. Now, why God would need more teeth than His jaw will hold (which is true of humanity) is beyond me. Indeed, why God needs a back not quite fit for upright stance but no longer useful for a quadruped, or why His knees are so poorly engineered so as to suffer from strain-related disorders baffles me considerably ...
Unless... it was man who created God in his image.