No way. Maybe in our lifetime, but certainly not while we're flying at FDX or UPS. The accident rate on UAVs is nowhere near safe enough to allow extensive CONUS flying into large regional or international airports. All it would take is one unmanned A300 plowing into downtown Detroit while on short final to shut it all down for good. Single man cockpits I could imagine, but unmanned flight decks? I don't think so. If you truly believe that way, what are you doing to plan for being out of a job?