I teleported to Mor Dhona after reading the patch notes and the NPCs had this to say at the two camps I went to. (Brittlebark first, then Revenant's Toll)



After some running around, I found the wall at this location:


Trying to upload a screenshot but Imgur keeps erroring out on screenshots. :/

I wonder if this is where some event is going to happen soon. Or has this already been here for a while and I'm just now noticing it?