The xpac test this weekend was, in my experience, a sad gank fest. I tried to struggle out from the constant attacks to see what had actually been added to the game, but wasn't able to. From literally the second I logged in I was forced to contend with roving gangs of gankers against whom a single player had no chance.
I uninstalled. I'm sure some people like that sort of grief based PvP. I'm just not one of them.