Yea I was wondering about that area as well, maybe you get a invite at some time or something. It has to come into play at some time in the game.
Not sure on the force fields in that area, I still have three anti dragon bubbles in that area I have not found how to shut off yet. Think I read somewhere you can disable all but one, I still have three as I said.
There is also that high up area on the right where they have goblins locked up in at the slayer camp. The door says not pickable so I take it there must be a key or some way to get into that area and see whats going on. Kinky stuff I bet.