What?
Druid was in moonglade
Monk on the wandering isle
DK in archeas (moved to Broken Isle, but could easily move again)
Shaman in the maelstrom
Priest, Mage and rogue are in Dalaran, which has a habit of moving (Alterec, northrend, broken isles)
I think only the Hunter class hall actually was fixed solely in the broken isles.