So. In the hierarchy of existence, It seems to go:
Realm of the Living --> Shadowlands --> ???
I know that we’re told that once you die in the shadowlands, that’s it. Your soul is no more, your anima just joins the conglomerate and loses individuality and memory, or dissipates completely.
I would argue that this mindset is drawn more from an acceptance of what is shown and told to the denizens of the shadowlands in both realms.
In the realm of the living, you’re told that there is an afterlife. You’ll join your ancestors, ascend to the light, join Odyn’s army, so on and so on. There’s this theme that that is the end - that’s your eternity.
Why, once you enter the shadowlands, would you believe anything else? You’re walking among souls that have all grown up with the same belief - and I suppose it’s easy enough to accept that of course this is the end.
But why does that have to be the case?
What, is it like anyone’s come back to say there’s nothing? Did those of Azeroth know for sure that an afterlife was a reality until the orcish necromancers defiled graves for their spells?
The shadowlands are a proven destination, and have been - but haven’t always been. Life after death wasn’t always a proven thing (in Azeroth at least), so…what’s to say that existence just doesn’t end?
What’s to say that there is a realm beyond the shadowlands, one that just…hasn’t been breached yet? What if that’s what the jailer is after - breaking apart the whole idea of meaning behind action, I suppose. Yes, it’d remove meaning from death - and especially if he continues breaking through the realms like he’s done, there wouldn’t be an “end” of your existence necessarily.
If you “died”, you’d just end up somewhere else - and through the jailer’s handy-dandy chain highway, you could just walk back!
I mean I’d argue that WE have been doing that for ages. We’ve got some secret that we haven’t shared with the world despite our existence being canon enough to kill an expansion endboss.
So, what’s after the shadowlands? No idea. But I bet there’s still more stuff to kill!