Nutloose,
Not really answering Hueymeister's question; and with that and some other comments in this thread, I think you might be confusing Reaper with some of the smaller-scale tactical UAVs that are operated from a desk or a laptop in a case. They sit in what to all intents and purposes is a cockpit, with a stick, rudder pedals, a throttle quadrant etc, and can fly the aircraft entirely manually if they like.
For Hueymeister, no; the current pilots flying Reaper retain their normal wings and the opportunity to return to manned flying. These guys were in the Ops Spt branch and were put through a trial to test a bespoke training system for RPA-only pilots. Now that it exists and has been proven, people will be able to walk in to a careers office from the street and join as a pure RPA pilot.
It's not a new branch, it's a sub-specialisation of the Flying branch that sits alongside pilot, WSO and WSOp.