CORUS (a SESAR JU key project) don't forsee this until implementation phase U4. There have been many demos and studies on all this from the BAe Jetstream 41 to a Northrop-Grumman drone that did a transatlantic flight in the last few months. Segregated demos are all well and fine, but everyone in the industry knows that this will take at least 10 years before it's even at the Standard Scenario stage (which JARUS and EASA haven't even defined yet).