Good news, World of Warcraft tanks – you’ll be taking more damage in Legion! And that really could be the good news, depending upon how you look at a lengthy diatribe about the philosophy of tanking and healing in the next expansion. The designers note that there was a consistent issue in most content of tanks being almost completely self-sufficient in dungeons, with healers only needing to occasionally heal the tank and any damage needing to reach absurd levels to actually threaten the tank. This also meant that anything breaking away from the tank would usually kill a healer or DPS in one or two shots due to damage scaling.
The result is something of a paradigm overhaul, with tanks taking more damage and active mitigation being toned down while enemy damage is also toned down on a whole. So tanks will be taking more damage, but the end result will likely be an environment where healers have reason to heal more, tanks aren’t purely ironclad damage sponges, and everything undergoes a subtle paradigm shift until the next expansion shifts it again.