No there will never be a fully automated passenger aircraft in anyone's lifetime. The reason is cost, while perhaps technically possible, it would cost way more than anyone here who says there will be automated planes thinks. As an engineer I can tell you that strict tolerances cost big money. Massive amounts would have to be spent to even build one aircraft to the specs required to replace a human. You can read that as perhaps trillions of dollars to produce one aircraft to the 99.9998% reliability of humans, perhaps maybe even in to the quadrillion dollar range. The reason is that the sum of all aircraft parts must live up to that kind of reliability tolerances, A 747 has 1 million parts. Could you imagine the task to build a perfect airplane and maintain it. It would cost millions of dollars to operate, most human crews cost about $600 an hour. Humans are cheap labor, I suspect manufacturers will keep saying it is possible only to keep human labor costs down.