As unlikely as this sounds, I think it might be a good time to bring this up.
There are a few ways that BN can survive and not chop a bunch of booksellers/managers, but few of them are particularly happy. Like so many death-row inmates, BN can go on breathing indefinitely. I think the most likely thing that could happen is that the publishers might well pony up the money to keep this dead man walking, in order to secure a short-term future where they won't be under the Amazon thumb. Or, another white knight may well show up to infuse some more capital into the company--there's one born every minute, and two to take 'em.
A more obvious future might be like things are going now. Sooner or later, the BN board of directors will find some clown to be CEO, and reverse the slide a bit. Perhaps Len Riggio, in his dotage, will insist that there are no further layoffs, at least in the immediate future. How will this play out?
In the last ten or fifteen years of my time at BN as a manager, there was exactly one year where the sales-per-hour (SPH) went down, meaning, it was clear not enough was being spent on payroll to insure that sales (and less importantly, customer service) wouldn't suffer. Otherwise, SPH targets went up every year, meaning fewer booksellers on the floor. SPH will continue to increase, which means ever more tight payroll, meaning fewer people doing more and more work.
Naturally, it comes to a tipping point (another term MBAs are fond of) where there simply isn't enough payroll to cover the floor to a minimum extent. Fewer booksellers on the floor means lower sales, and quality of life issues increase, and the job becomes too much, and the best people leave anyway, rather than suffer through shifts filled with tension.
The bright side of this scenario is that people who are still with BN will continue to get paychecks every week. The downside is that those folks will wish they had been laid off and found a job that wasn't so completely miserable.
The clock's ticking, guys. Get your head wrapped around a new career, and start making it happen. Because either way, it's not going to end happily for anybody.