Heart of Azeroth may be pure cosmetic thing that also has plot significance.
Its just that the whole cosmetic thing needs to be kept permanent after 11.0.
My main skepticism of this leak is that it’s not obvious why an underground city would have mounts called Algarian *Stormriders*. There could be storms underground from some magical source I guess, but the much more obvious answer to me is that the mount points to the Storming Sea/western continent idea.
Nothing at all leads me to believe this will be the case.
But I'm putting my wishes and prayers for playable Vrykul into this thread.
Perhaps it shall be made manifest.
If Nyalotha was originally supposed to be in the Shadowlands, it was probably pointing at how it could pull souls out of the Dream.
Otherwise, it might have been a hint that Ysera's ghost isn't fully herself. There's the Ilgynoth quote at the end of BfA about treachery coming from the "vassal of life," and in Shadowlands, weird stuff happens with Ysera's life seed when the player gets there which ends up empowering/awaking her early. N'Zoth in BfA apparently considered the player character his chosen one and we were manipulated into freeing him.
http://riftofaln.battle.net/ leads to an endlessly long loading page that gives a 'took too long to respond error'
Changing a letter in riftofaln leads just gives an error saying that the page doesn't exist. That means riftofaln is definitely something (or was supposed to be something ages ago).
I could totally see it, WoW:Rift of Aln, with Khaz Algar as one of the zones