Soon we will see (or maybe we already have?) aircrafts that can fly without a pilot. But this is mainly military, it will take a long time, if ever, before we will see this with airlines. The passengers might not like the situation without a pilot. It feels much safer to have a person in the front rather then a computer.
In the end there might be one pilot and a dog in cockpit. The pilot will see that everything is ok, and the dog will bite the pilot if he touches anything