The folks over on the MSRC blog just announced Advance Notification for the October 2009 Security Bulletin Release:
For October we are releasing 13 bulletins (eight critical and five important), addressing 34 vulnerabilities, affecting Windows, Internet Explorer, Office, Silverlight, Forefront, Developer Tools, and SQL Server. Most of these updates require a restart so please factor that into your deployment planning.
Among the updates this month, we are closing out two current security advisories:
Usually we do not go into this level of detail in the advance notification but we felt that it is important guidance so customers can plan accordingly and deploy these updates as soon as possible.
For more details see http://blogs.technet.com/msrc/archive/2009/10/08/october-2009-bulletin-release.aspx
J.C. Hornbeck | Manageability Knowledge Engineer