I think it will happen when the technology to make it happen is cost effective. Just like the A380—it’s an engineering marvel but an economic disaster. In time it will be an outstanding aircraft even if it is French!

My bet would be 10-year before a UAV takes someone’s job. But right around that time the 80% population of the third world countries will be of age to be pilots and they will fly our airplanes from India for $260 a week! So UAVs will get shelved for another 5-years until the world population realizes that UAV are safer than the new pilots crashing cargo airplanes and congress will mandate that safer UAV be flow over our cities as an alternative to the dangerous humans.