Well I'm not sure if gamestop will do a midnight release but I'd imagine they will. As far as the download tho, there shouldn't be any download on the 15th. The download is the 8th. It wasn't until recently that I realized DLC already exist on our systems. I logged in from a friend's xbox who only had vanilla destiny, and as soon as I downloaded the expansion pack key, it unlocked DLC content. The regular updates are when they load the DLC onto our systems. The actual owning of the DLC is simply a code that unlocks what they've already made you download. So even those who don't buy TTK will have it downloaded onto their system on the 8th. Once u put in the code to own it, it un locks at 2 am PST.