Originally Posted by
Hitei
If those NPCs were also Vereesa and Sylvanas' sister, Arator's parents and void/light infused, sure.
We've learned that the Naaru are willing to force people against their will to serve the light, that this was their plan for Illidan. That Sargeras has brought back what appears to be a fragment or avatar of Aggramar. That demons who fail are punished in Antorus, and that the Legion is still actively invading a multitude of other worlds. We've learned that Velen left behind a fair number of Eredar who still opposed the Legion, and that they survived and were enslaved, and that some of them have escaped and scraped by on Argus by hiding in the shadows and biding their time.
We learned that the reason Velen's family was lost was because his trusted advisor betrayed him to Kil'Jaeden. We learned what Archimonde was like in his day-to-day and how he handled students before the fall of Argus. We learned that there are Ethereal who have become void infused, a bit about the Legion's heirarchy and circles, and that though the grunts don't seem to know much about the void and only care about conquest, the circles near the top are quite aware of what it is Sargeras is actually trying to do.