Next scheduled release: Sep 10th, 2013
The heads up for this month is; On Tuesday 10th Sep (US time; Wednesday 11th September AU time) Microsoft expect to release fourteen (14) new security bulletins. Four (4) bulletins carry a maximum aggregate rating of Critical, and ten (10) are rated Important.
In celebration of kids heading back to school, today we’re providing advance notification for the release of 14 bulletins, four Critical and 10 Important, for September 2013. The Critical updates address issues in Internet Explorer, Outlook, SharePoint and Windows.
As always, we’ve scheduled the bulletin release for the second Tuesday of the month, Sept. 10, 2013, at approximately 10:00 a.m. PDT. 
 Advance Notification Service for September 2013 Security Bulletin Release (2013-Sep-05) [MSRC]
 Microsoft Security Bulletin Advance Notification for September 2013 (2103-Sep-05) [MS]