@Sir Derf The Weekly Quests don't reset like the Daily Quests do. So if you don't complete a Weekly Quest within the week... it won't refresh and will stay there until you do, and then a Queued Weekly Quests will take it's place... so I'm thinking the additional 5 Days are there to help if you haven't completed a Weekly Quest and need a bit more time!
Of course that's just me assuming! I have asked
Of course that's just me assuming! I have asked