What would prevent the retailers from knowing about it a week or two before? We're only talking a three week difference between an Oct. 28 launch and a Nov. 18 launch. If 6 weeks is too short but 9 weeks is A-Okay, then just tell them after Labor Day, and then it's ~8 weeks.
Yea im pretty sure retailers will know launch details before we do on the Sept 13th, they may learn about it the by the end of the month and start to put the info in their systems the week before the 13th, then hit submit when all is told.