Windows 10 Cloud will be able to run Win32 apps. Overall, the new SKU could be used by Microsoft as a more secure version of Windows 10, preventing users from installing legacy Win32 apps. Windows 10 Cloud would support Win32 apps that have been released on the Windows Store with Microsoft’s Desktop app converter. A more recent Windows 10 Cloud build has just leaked, and can run desktop apps in the Windows Store ported through the Centennial bridge.
There are not a lot of Centennial apps on the Windows Store right now (the Office desktop apps), but Windows 10 Cloud will really need more of these to become an attractive option for consumers, educational and business users.