Speculation is running rampant that Windows Blue, the successor to the much hated Windows 8 will see the return of the Start button, as well as other improvements.
I'm still a happy XP user at home and at work I use Windows 7 which I equally like. Having seen the strangeness of Windows 8, I decided to skip it as I did with Vista when it was released.
Seems like Microsoft is getting it right (or wrong) with every other Windows release. If some of the classic and useful interfaces like Windows 7 are returned, Windows Blue may just be the platform for my next upgrade.