Allegiant Air is surviving on charter work. I also heard they had the contract to provide scheduled charters for Air Laughlin to the Laughlin/Bullhead City Casino area.
I hear that the FAT-LAS flights are seeing good loads. In fact, FAT seems to have returned to near normal numbers.
As far as MD-80s, I've heard the rumor too but I don't think it will be happening anytime soon.
"Travel is fatal to prejudice, bigotry, and narrow-mindedness." - Mark Twain