I think too this sounds kind of freaky.
ATC improves all right, but this is not enough. A single pilot implies also that some means will be found, to ensure he won't have to go to the bathroom during the flight - to take just one basic and everyday situation. I can hardly imagine passengers knocking at the door "could you Sir please hurry, the airplane is behaving funnily"...
In fact, having seen most of the "Air crash investigation" series on Discovery channel, it looks like in most of the those cases where the crew eventually saved the day, this would have been impossible for just one person to handle. Aircraft systems DO fail, and they will keep on doing so, and when this happens two people solve the problem better than one does.
So... it may happen, to reduce costs, but I think this would mean a step backwards in safety, no matter how well this is prepared.
Andrei