I lived in Atlanta during the 1996 olympics and it was pretty crazy. The argument about the events and village being too spread out doesn't hold. For the Atlanta olympics, some of the events were held outside of the city, including Athens (72 mi.), Savannah (249 mi), Polk County, TN (127 mi), Birmingham, AL (145 mi.), as well as Washington D.C., Orlando and Miami for Soccer events. So, distance seems to matter very little.
Personally, I think Orlando, or central Florida will eventually bid and host the olympics sometime in the future. The entire region continues to grow, thanks in part to Disney and Universal. So, it may not be soon, but my guess would be within the next 20 or so years.