Yeah I would bet they dont come out tomorrow, however it is possible since Best Buy could just be receiving the new MBPs later? Im sure Apple wants the first batch all to themselves as 99% of people will be buying form Apple directly.
It was mentioned previously by a few BB employees that the stores usually lag about two weeks behind Apple's release dates. Either way we have no true evidence pointing to a date, just circumstantial at best. This is more of a 'hoping' that it's released sooner than later.
At least no matter what we know there *will* be a new MBP