A roadmap slide from an Italian Windows Server presentation spotted by UXEvangelist shows that the next major Windows Server release for Microsoft is set for 2012, which is approximately three years from the release of Windows 7.
Windows Server 2008 was a major release and took place in 2008, which is four years before 2012.
The next major release for a client operating system will occur one year after. In which case, Microsoft is expecting to release Windows 8 some time in 2013.
As we have seen with the development of Windows 7, Microsoft did not mention anything specific regarding release dates until RTM was very near. Original estimates of Windows 7 RTMing in April and October were also off from the July 22 date.
Although “Code Name “Windows 8″ ” may suggest that Windows 8 will not be the final name, “Windows 7″ was also a Code Name before it was declared the official name of the operating system.