I have been wondering the same thing ! I did see a couple scrapes and a great rub line on Sun and saw a nice buck cruising on the way to the shop this morning so it looks like it's heating up finally.
hunted there last weekend, no sign of rutting yet, usually the best weekend down there every year is mlk weekend, last weekend in jan. Its a shame, because you can still see the rutting into february...peak rut is mid december on