I went to speak to Korg about the fair and a scene played out where I got a choice to tell Korg about an underground trail and Korg left to take it. I didn't think anything of it and now I've progressed quite a bit after that and I can't find him anywhere.
Does Korg permanently leave? If so, I'm now locked out of the Expanding Bareshade quest since I can't talk to him about the fair even though the fair has ended