I think most of us are pessimists... for good reason.
But if the NMB/Obama see the light and do the right thing, we have a chance; otherwise the company has no incentive to get it done and won't. McKeen's letter admits as much. And frankly, I think his letter hurt their case! But the worse they look, the better for us.
The existence of the letter indicates that management believes that there is a decent chance of release and they are taking it seriously. Which I think is good news for us.