I think they've already been measured for their coffin. Blackberry's bread and butter was corporate contracts, not the least of which is the Federal Government.
But what company would update their Blackberry fleet to the newest, top-o-the-line model? They're sort of in a lose-lose situation. They've been "safe" for so long but for the past couple of years safe has meant "let's not do a damned thing different and see how that works".
Now it's too late. I've been saying it for the past 2 years now. Blackberry is on it's way out.