With the success of Kentucky and Louisville, I am surprised that there hasn't been any NBA interest in the region.....even in a city close, like Cincinnati.
I am also surprised that St. Louis doesn't have a team, but with the deal the Spirit did, I am sure the NBA has stayed away on purpose. I am surprised that KC couldn't support a team, but Sacramento can. Seattle supported their team, but the owners wanted a new arena. They had tons of money, I am surprised that the owners couldn't find a way to get that arena built. As for Vegas, I would have no problem with a team there, but I don't know if the league would be comfortable with it. I can see a ton of problems with having a bunch of young millionaires running around the streets of Vegas when they come in for a road game.
Seattle is a given as a new franchise. After that, I would go after Cincinnati or KC/St. Louis, then Las Vegas.