There will be three "Critical" and four "Important" updates in the final Patch Tuesday update in 2014 that is slated to go out tomorrow. As noted in the latest Security Bulletin Advance Notification from Microsoft, the seven bulletins will affect Internet Explorer, Microsoft Office, Windows and Exchange.
One of the critical bulletins will affect all supported versions of Internet Explorer, including the latest IE 11. The other two critical updates will fix security flaws in Windows Vista and Windows 7, as well as all editions of Microsoft Word ranging from Word 2007 to Word 2013 on Windows, and Word 2011 on Mac.
The Exchange update is likely to be MS14-075, which was originally slated to ship last month. Microsoft apparently pulled it at the last minute because of a problem with the installer package for Exchange Server 2013.