Back to the original topic, No, I do not think they are currently working on an extension. That time was 2 years ago, and since according to Burnes himself, that didn't happen, it is far too late for a team as tight as we are, to even have a chance to do it now.
No chance he takes a discount, if the recent arbitration battle isn't a clear sign that isn't going to happen, I don't know what else can be said about it. Why we had to fight ove a measly half a million is beyond me. Which is another reason I think there is zero chance of an extention. If in good faith we thought we had a shot, we would have given him what he wanted to save face, and secure a small chance we can sign him. Since we said SCREW YOU, we aren't going to give in and give you that extra half a million, the writing was already on the wal that wasn't going to happen, so we saved a little money, and realized he was a goner.
I think it's time to accept the fact that he is going to leave, and now, like brewmann said above, it's time to concentrate on what we can get for him either between now and opening day, or next off season.
We simply have no shot at an extension unless we want to completely bury our payroll for the next decade. After seeing what has happened with the Yelich contract, I just don't think they will want to risk it again, and pay 2 guys more than half of our payroll for the foreseeable future. It just isn't feasible.