Sylvanas is having a meeting at Theramore. She has invited many faction leaders of the Horde to see the price of treachery first hand.
Sylvanas Windrunner says: I have troubling news. It seems there are traitors in our midst.
Most of you need fear nothing.
But Derek Proudmoore didn't flee to Kul Tiras by himself. He had help. Didn't he...
... Zelling?
(Frightened Zelling stammers, panting)
Zellig says: Stop! ... I returned Derek Proudmoore to his family.
I could not stand by and permit such depravity to unfold.
You raised him as a Forsaken. But you planned to deny him his free will. To violate his mind.
Sylvanas Windrunner says: Thank you for your honesty.
Baine Bloodhoof says: Banshee! Are we nothing more than pawns in your game? You betray the Horde!
Sylvanas Windrunner says: No. He did. And so did you.
Take him.
Baine Bloodhoof says: Others will see you for what you are, Sylvanas. You will leave the Horde in ruins!
Sylvanas Windrunner says: There is no place for weakness in our ranks.
Sylvanas on Xal’atath
Sylvanas Windrunner says:
Xal'atath... a fascinating weapon. I have heard tales of its exploits.
A pity it now lies dormant. But anything that slumbers can be awakened.
This blade is more than a mere dagger. It is a torch that shall light our path forward.
Soon I will call upon you again, champion. And together, we will steer the Horde toward its destiny.
The Alliance believes that by striking down Rastakhan and decimating the Zandalari fleet, they have broken us. That the Horde will soon crumble.
Fools. The boy-king has lied to himself and his people. He hasn't the faintest inkling of what he's truly up against.
War is a living thing. It writhes, it grows, twisting and turning until its final form is revealed.
This war is about to shift yet again. And it will be this blade that guides our way to victory.
Bwonsamdi also asks Talanji to bring him the head of Sylvanas and he would free himself from her family.
N'zoth:
"The light has struck a bargain with the enemy of all" [
Audio]
"When the arrow finds its mark, the last
fetter will fall away." [
Audio]
The veil wanes. His crown will open the way [
Audio]
TLDR:
Sylvanas is the fucking KEY to saving Azeroth and N'zoth and the Void is manipulating EVERYONE to kill her.