Aren't all events held by Event Services now? If they are, I would assume that they are waiting for one event to finish before they start on the other event. Therefore, they are waiting for Disneyana to finish this weekend. Then they will send the Sept. Pin Event info out. Once the Pin Event has completed, then they would send the HM Happy Haunts info out, etc.
I could be wrong, but that seems to be the way it has worked previously.