The real question: will Clinton have a lock by the time the convention rolls around, or can Sanders prevent the crowning? (I mean, even if Sanders doesn't "win" any other primaries, can he still remain close enough to prevent the run away result?)
By design, it's difficult for one candidate to develop a big delegate advantage under proportional representation, especially when there are two strong, well financed candidates competing for the nomination. So even if he fails to "win" outright, if Sanders continues to run fairly strong in various contests, things will remain interesting...
I'm a a firm believer that the media narrative will change drastically on Super Tuesday and Bernie will become yesterday's news. By no later than the middle of March it will be obvious that Hillary is truly inevitable and Bernie has no chance to become the nominee.