Before I purchased at VGC last year, I watched the booking pattern for about two years (by renting from other owners, following the posts on the Dis-board and other sites, and using the temporarily-available tool published by another Disney-fan site that allowed you to look at all the availability of rooms looking out 7+ months).
What I saw was that the studios were gone before the 7-month window for any high visitation dates to the DLR (Christmas/NYE, Thanksgiving, July 4, Memorial and Labor days, Marathon weekends, etc) and gone soon after entering the 7-month window for most any other times. The 2-br’s were available a little longer but only about a week or so longer and the 1-br’s just a little longer than that. In August of 2016, you should still be able to get something at 7-months.
Since my points were purchased via re-sale, I don’t have the option to use the Disney Collection. However, I have done several cash-stays at the DLH in the past few years and have found that there has been standard rooms available even at 45 days out from my summer travel dates (with the notable exception of this year around the 60 Anniversary week where nothing was available at 60 days out). I don’t know if the Disney Collection inventory of rooms at the DLH is different from the inventory of standard rooms, though.
Good luck with your planning!