Level 70 Elite Tauren guards (not to be confused with L70ETC) have been stationed outside Zul'Aman on the test server. I agree with Elizabeth that the race choice makes no sense, but according to CM Nethaera, the guards (in some form) are there to stay.
This is, of course, in response to the overwhelming complaints from Alliance players that have to go to Horde territory in order to try out the new instance.
Nethaera also says that they will be implementing a Contested Area around Zul'Aman to further alleviate the unbridled ganking currently occuring there. She says that in the past, they could only flag entire zones as contested, but now they have the ability to change the PvP status of just an area within a zone. This change will be implemented on the PTR first before coming to live servers.
They are also going to be surrounding other instances with contested areas, such as the Scarlet Monastery. Unfortunately for the Alliance players currently trying to farm the Headless Horseman, this change will come a bit late. But maybe it will be implemented in time for next year's event.
Players have been voicing concerns about changing the areas in lowbie zones to contested. How will it affect the level 10s trying to quest around these new contested areas?