We've had lovely fall color despite the extreme drought-- the yellows and reds have been great; drought stress sometimes stimulates the anthocynanin production that provides the orange, red, and maroon colors. Some of the oaks will probably drop their leaves without much color change. And other species are late to change color; probably the temperatures haven't been cold enough yet.
Trying to figure out the maple species whose image I took along the square in historic Pendleton, SC was interesting; one tidbit I learned was that our maples, especially red maple, are planted widely in Great Britain for their fall color. Acer rubrum (red maple), Acer leucoderme (chalk maple), Acer barbatum (Southern sugar maple) and Acer saccharum (Sugar maple) all have nice fall color here, ranging from yellows, to orange, red, and scarlet.