Ivory Hawkstrider - Item - World of Warcraft - …
You can enter any of these World Quest areas and use Ivory Talon whether or not there is a World Quest active in the area! Obviously, you are unlikely to find other players if there isn't a World Quest up. Even if you have completed a particular PvP World Quest, you are still able to use Ivory Talon and linger in the area for as long as you want.