The moment I saw this thread I went digging for answers, but I haven't seen anything about August 16th having any true significance in relation to a beta. Also, I had been up for something like 40 hours at that point so I might have missed something (just to cover my ass).
Unless you're talking about Gamescom on the 17th, which blue posts are beating speculation in to the ground about.
Yeah i'm not trying to be a buzzkill, but it almost seemed like they werent... kidding when they said nothing would be happen. I mean i'd happily be proven wrong if the 16th comes and something does happen, but they explicitly said nothing would be happening and something along the lines of "how much more clear can we make it". So i'm fairly cautiously optimistic.