I thought the Primus in Maldraxus looked like the statues. The runecarver looks nothing like the statues.
Ok so. It sounds like the Lich King is talking in this cinematic. The Jailer has yelled at me a lot the past week and he doesn't sound like this. So is this like some projection voice The Jailer does and that means it's literally him talking through the Helm?
Personally the sense I got from Maldraxxus was that the Primus has been missing for at least 50 Azerothian years, but that's just an arbitrary number.
Plot Twist: Runecarver is actually the REAL jailer.