From what Gibbo told us, they will receive small amounts of cards from few makers. Small means less than 50 to quote Gibbo.
So, with that data let's say I'm like 300 in the overall queue considering the time of my purchase and around 100 with the model of the GPU I ordered. My model has small stock incoming next week and till end of September shipments will be small but the chance should be pretty high to get the card early-mid October.
This is Gibbo's quote, and of course all of us are waiting for future updates.