Poking around on the PTR and got under the new Orgrimmar. The new "under org" is quite expansive and pretty neat. The grey rock walls surrounding everything leaves a big empty space between it and the red canyon wall behind it. Would be a very good spot to organize a raid to come out of the walls :x
Just a few shots showing how to get there (one of I'm sure many possible ways). You'll be popping through this spot with a mammoth:
http://i892.photobucket.com/albums/a...neworg/uo1.jpg
http://i892.photobucket.com/albums/a...neworg/uo2.jpg
http://i892.photobucket.com/albums/a...neworg/uo3.jpg
http://i892.photobucket.com/albums/a...neworg/uo4.jpg
http://i892.photobucket.com/albums/a...neworg/uo5.jpg