* A start button (not menu) on the desktop mode taskbar, having the same functionality as pressing the Windows key
* The option to boot into desktop mode instead of the start screen
* More tile sizes (1/4 small thumbnails, and 2x large) for the start screen
* 50/50 split view for Win8 Apps in addition to the ~25/75 option
* Internet Explorer 11
* A rollup of windows update patches to date
They'll probably also announce the 7.5-inch Surface tablets at the same time. They're getting 8.1 to OEMs so the next generation of Win8 tablets can ship with it.
And it will help the usability for my parents too on their Windows computers. My mother has become confused with her Windows 8 laptop (that has a touch screen) about how to switch between modes.
With Parallels, I agree. Sorry, it was a reflex for the usual "Win 8 has no start menu" trolling.