Over the last few weeks, we've seen a lot about Windows 8.1 exposure, and from the latest Windows 8.1 build 9374 Screenshots we can see that not only Windows 8.1, Microsoft has not forgotten Windows RT users, it will also launch Windows RT 8.1 Preview version, which means that Microsoft's Bule update is not only Windows 8.
As you can see from the Windows 8.1 build 9374 System file screenshot, the Blue version of Windows RT will be named Windows RT 8.1 Preview, and we can see that Windows Server will also be updated, code-named Windows Ser Ver R2.
The Blue version of Windows RT will be named Windows RT 8.1 Preview
It is not yet clear what new Windows RT 8.1 Preview will bring to Windows RT, and will those new features of Windows 8.1 come in Windows RT 8.1? Neowin speculated that Microsoft might launch the Windows RT 8.1 preview while releasing the Windows 8.1 preview.