http://us.battle.net/wow/en/characte.../Scopel/simple
In the first couple weeks of legion, people were seen with onsies and twosies of nighthold items. They never revealed how they got it. After looking at mob count of these guys and time spent, looks like heroic items drop off elite suramar mobs (not the ones in the WQ areas).
This guy has chest and ring. He is telling people he got it from a emmisary cache but his friends say hes in a trash farming group.
He also msg'd a GM to see if it was legit.