The new dungeons drop the Myth accessoires, Crafting Mats, set of items that look like gear but aren't (antique breeches/mail/helm/gauntlets/tassets/sollerets) all unsellable unigue and untradable. I have no idee what these will be used for maybe for trading stuff. And in Satasha Hard and Quarn Hard the final Chest will drop a new minion. All these information are in the lodestone database.