I actually stopped by Gamestop two days ago and talked to the manager (he was at the register). He said that he needed 100 pre-orders to justify a midnight, and then he still had to have upper levels tell him to.
I'm in the highest population dense area in WNC, and we have 3 Game Stops. While that lessens the odds of having one of them go over 100, I'm hoping they do! They didn't say precisely how many they had, but they said they have a lot. I hope it gets cleared to happen before the 6th!