MOD INPUT: Chill out please people. This topic is worthy of conversation but let's not get too bent out of a shape. I think everyone here is a pro pilot of some sort and has legit insight on this.
My Take: Due to commercial/political pressure and eye-rolling on the part of the public, the FAA will under-regulate this growing segment and eventually something bad will happen. Likely a few light-piston accidents, or maybe even a serious 121 incident. Then the pendulum will swing hard the other way and drones will be highly restricted in airspace and have to carry some sort of transponder. And yes the RC community will get tarred with the same wide brush. Not fair, but that's how it's going to go down.
Unless amazon manages to establish a large-scale near-real-time drone delivery system before the accidents happen. In that case the needs of public convenience will outweigh the needs of public safety.