Love this thread.
My interpretation is pretty similar to the OP:
Turalyon on the throne of Stormwind could lead to the zealous adherence to the Light we saw applied to Illidan in Legion and to the Mag’har in the Allied race quest. Spoiler alert - it isn’t good.
Cunning ones kneel before six but serve only one matches the lore item in question. The nathrezim are in all six realms but serve only Death.
- Lothraxion in the light
- Pick a dread lord in the twisting nether (they even mention using fel magic)
- When Sargeras finds the corrupted Old God world he finds dreadlords living among (void) them.
- When Sargeras interrogated them it led to him turning evil (order)
- Someone in Life with green eyes.
Six mouths with one that will consume all seems to refer to six realms from the cosmological chart (order, twisting nether, light, void, death, life). I assume one will consume all is a reference to death.
I suggest that’s Death because in many Lores that involve an actual “Death” force/being/etc that being normally is portrayed as supreme in the sense that in the end, everything decays and dies and Death will claim them all. That usually doesn’t mean they can simply overpower other forces, but eventually will win.
I absolutely believe there are six “beings” that ordered the cosmos - Death, Life, Chaos, Order, Light, and Void.
I just don’t know how the situation in the Shadowlands fits in exactly.
The Jailer seems to require all of the other leaders to hold him back - that suggests he is more powerful than any one of them. The Maw seems to be the place where souls go for “final” death. The devs said the Jailer is akin to Titan++. Does that mean the Jailer IS Death, somehow imprisoned? That would suggest that the realm of Death turned on its creator - which seems unlikely (and imprisoning Death seems unlikely without the other cosmic powers intervening). If Death is imprisoned though, that would shift the balance in the cosmos, which seems bad.
Lacking being a “cosmic” power though, I can’t see how the Jailer poses a wide scale threat. It’s one thing to say the Jailer could wreck havoc in reality. It’s another thing entirely to suggest the Jailer could invade and conquer the other planes of existence. Maybe the Jailer himself imprisoned Death and we need to free it so it can get control of the Shadowlands to fix things?
Maybe the other cosmic forces imprisoned Death on Azeroth (there is mention of something on Azeroth) due to Death going rogue and trying to wipe everything out and the Jailer wants to free it. Again though this runs into the issue of an imbalance in the cosmos which would seem to be bad.
Typically when you see forces arrayed as they are in that cosmological chart, they are all competing and creating a balance. When one is pushed down, balance is skewed, and the Universe is threatened. That actually would suggest the counterbalance to Life is depressed and we need to help Death offset that encroachment.
I could envision some of that being true - the Arbiter rarely sends souls to the Maw so even in the realm of Death there is little true death. The scary thing though is if that’s true, we might have to fight back the forces of life at some point (and/or even help Death).