So I'm strolling around Thanalan, East of Drybone, doing a quest and I come across a little green dot on my mini-map and an area that looks like some sort of small scale Antlion nest (think FF IX) on the surface, with one small mound/cave leading down to a couple of tunnels and a guy called 'Chamberlain' stood there (dressed the same as Ul'dah's guards) who pretty much says 'Go home now, nothing to see here'.

What strikes me is:
1. He's stood right in the middle of the path (I know this sounds simple, but I'll get to it).
2. I don't know him from any quest. If he was from a quest, usually they're people with story to tell, or stood in a definite area. He's just 'there'.
3. I haven't seen this before. Maybe I missed something and someone can fill me in on it?
4. Most of all: The path behind him looks JUST like the sort of path behind the guard at Toto-Rak (e.g. a small path you can walk down until it 'drops' that you can't run any further down, where the guard won't stop you. This ties in with #1). As soon as I saw it I though 'Dungeon raid area!'. Though maybe I'm getting ahead of myself.

Want to check it out for yourself? Go to Drybone and head east.
On the map 'Eastern Thanalan': (x:43,y:25)

So have I missed something, or are we seeing placeholders of future dungeons SE is working on?
Thanks!