I'd like to add that the Urn of Sacrifice Quest adds a decent chunk of things to do, in a fun and challenging way, with a decent, legendary reward at the end. And looking at the connection with Xur, it might be possible they will offer a quest leading up to the Urn (hopefully a "new" quest not the same one we already did), and then the Urn every week. You'd have the week to get the Urn, Xur-Time to fill it. And if they couple that with different quest steps and requirements, plus rotating legendary rewards, that would be quite nice. Not that it's sure, but there is a bit more to the DLC than met the eye on release day.