Pankaj,
Like others have posted, I am trying to deploy a multi-language Win10 1809 image. I have a worldwide customer base and frequently need to deploy an image that can be quickly converted between 8 UI languages. Prior to v1809 I would install the supporting files via Control Panel once on the VM used to create the image. During deployment of the image all languages would be available to select from any profile without having to redownload the files.
Currently I must select the language from the settings menu, then re-download the language files. This is not efficient.
Are you saying that Microsoft is working on allowing the "machine-wide" use of language support files to occur once again? If so, your post was dated many months ago - is there any progress to report?