NPC: Exarch Onaala
ID: 21860

NPC: Vindicator Aluumen
ID: 21822

There should be a periodic conversation between these 2.

Exarch Onaala: Why hasn't Illidan made his move? All this waiting is making our forces uneasy.

Vindicator Aluumen: The Betrayer hasn't been the most predictable of foes, Exarch. I have no fear however, with the Light on our side we shall defeat his forces today, tomorrow, or whenever he chooses to attack.

https://www.youtube.com/watch?v=P-WScy_lQ9g
http://www.wowhead.com/npc=21860/exarch-onaala#comments:id=2063467