No he will not go to UFC/MMA fighting. He will be around 41 when he is able to do so, and he has 5 broken necks on his record. It has been said that a straight punch from a big-time puncher in MMA might kill him. UFC wouldnt allow him to take that chance, especially at that old of an age.
It was actually rumored to have taken place in the near future. Kurt would do well, but I fear he would not have the same status and it could be a mistake!