The more I read our "predictions" the more I'm starting to believe that a lot of us are way off base... Chase is not one to tie things up simply to end a storyline. I think a LOT of things will be unresolved when the final show ends. With that in mind I'll add what may happen (as I see it):

There are a lot of "Godfather" references of late... wouldn't it be a trip if it ends with Carmela asking Tony about his "business" and Tony lies right to her face (possibly denying any hand in Ade's killing)... just like Michael Corleone lied to Kay at the end of Part I.