With the recent updates for the Dark Brotherhood patch, we updated how the loot was distributed within the Maw of Lorkhaj trial, based on the feedback we received during the Thieves Guild update.
When Maw of Lorkhaj launched, you were guaranteed a set item piece the first time you downed a boss or completed a wave event for a given week. Subsequent clears, however, did not guarantee set items. This meant it was possible to experience an entire Trial run where you received zero set items from the bosses, and the feedback was understandably not positive.
In response, we updated the loot tables in a way that guarantees a set item drop every single time you beat a boss or complete a wave event. The gold-quality jewelry is now a guaranteed drop when Veteran Hard Mode is activated. You can also get gold-quality jewelry from the weekly leaderboards. We removed the gold jewelry drop that occurred once a week from the Veteran Mode (non-Hard Mode) tables. At present, the only items that are limited are the exceptionally valuable sellable items, like The Rid-Thar's Moon Pearls, which can still only be obtained once a week from defeating the Trial on Veteran Hard Mode.
We are closely watching your feedback, and are discussing returning the gold quality jewelry back into the Veteran Mode tables, without the weekly restriction. We understand that the Veteran Mode difficulty demands more coordination and skill so we want to make sure that the loot reflects the challenge.
Michael Schroeder
Senior Systems Designer - The Elder Scrolls Online