yep that's what I keep waiting for, that big drop in the temps and a hard freeze.
Had our state man tell us that last year, which was much like this year so far.....warmed up early, that one keeps hives were just exploding with brood and the bees were stretched to cover it good. The beekeep was worried about his hives in the upcoming drop in temps and freeze. On 1/2 of his hives he pulled 1/2 of the brood frames and shook the bees from it. This made the population density much higher and allowed the bbs to form a cluster again instead of being spread out trying to cover the brood (which was no longer there). Those hives survived and the hives he left all of the brood in took big losses.
That was really thinking outside of the box if you were to ask me.