I just completed the Sorrowdusk chain on elite with my Cleric to extract the favor. I was stunned when I saw the end reward loot. It was a long list of named items, every one of them with at least one augment slot, some with 2. The loot upgrade in this quest is really sweet. I picked up an Oilskin Tunic for my rogue. The new version is significantly better than the old version and has 2 augment slots, to boot.