Russian pirate group WZOR
leaked additional information about Windows 9 and another update to Windows 8.1. The group is considered a reliable source with a huge track record of leaking confidential information and downloads.
The group states Windows 8.2 might see the light this year, Windows 9 will introduce a new version of Metro, might be free and according to WZOR Microsoft is working on a cloud based operating system (OS). According to WZOR there will be another update to Windows 8.1 this autumn.