Brandy said literally "September-October", but for some reason, some fans forgot about Oct and quickly thought the EP would come on Sep 1st week, lol.
When an artist say a two months timeframe, most of the times (if not all) it ends being the latest. If her team hasnt announce its release date, its because they didnt want it for early Sep, plain and simple. So to get desperate in August, when she mentioned Oct doesnt make sense. They will announce it when they think its ready, and after the 1st song release, 3 weeks/1 month later the full EP will come. So basically, dont expect it for early/mid Sep, guys. It will come end of Sep or Oct, its better to expect it for Oct, that way it wont lead you to unneeded frustration.