Looks like this is going to be an update to Windows 8.1 which will be released next month. There's already been a few (near-complete) leaks of this build.
Some interesting articles which you may want to read:
http://www.theverge.com/2014/2/7/5390024/windows-8-1-update-1-boot-to-desktop-ui-changes
http://winsupersite.com/windows-8/windows-81-update-1-preview-hands-build-16610
http://www.pcpro.co.uk/news/385750/windows-8-1-update-1-what-we-know-so-far
Looks like title bars on metro apps (making them easier to close) and also showing the taskbar whilst running metro apps are the major differences. Apparently boot to desktop will now be the default option for PCs without a touch display and apparently Microsoft are also adding a shut down button to the Start Screen, but I added that myself a long time ago.
Some interesting articles which you may want to read:
http://www.theverge.com/2014/2/7/5390024/windows-8-1-update-1-boot-to-desktop-ui-changes
http://winsupersite.com/windows-8/windows-81-update-1-preview-hands-build-16610
http://www.pcpro.co.uk/news/385750/windows-8-1-update-1-what-we-know-so-far
Looks like title bars on metro apps (making them easier to close) and also showing the taskbar whilst running metro apps are the major differences. Apparently boot to desktop will now be the default option for PCs without a touch display and apparently Microsoft are also adding a shut down button to the Start Screen, but I added that myself a long time ago.