It is possible, but not likely as these major hurricanes can exhaust the energy supplies by churning up the water and exposing cooler deeper waters to the surface. However, having said that, this charley was such as fast mover she/he did not spend too much time in any one place, leaving miles of untapped heat energy in place. It is going to be an interesting season no matter what happens from now on. The Florida peninsula has still got several sides it could be approached from and of course that goes for all the coast lines exposed to the gulf or atlantic.