I just resubbed because a lot of my friends do pvp. We're all on Azgalor... but you guys are on European servers right?
Our realm to be at least mid-pop, now there's 0 people in Org and maybe a couple of people in the MoP capital. It's an indication that people either left this game or moved to higher pop realms. At least next patch they are connecting the low pop realms together.