Can anyone identify this aircraft in the AMARG area of Davis Monthan?
Problem solved, a close friend of mine pointed to these two very interesting articles on the topic:

http://foxtrotalpha.jalopnik.com/a-new-angle-on-this-shadowy-stealth-f-a-18-hornet-conce-1727910676

http://aviationweek.com/awin/super-hornet-stealth-test-rig-seen