As Opus works with FTP I would like to know if there is any study of a future version with support for cloud files like "GoogleDrive", "OneDrive" and "DropBox"
I abandoned FTP after I purchased the Office 365 License and won the "OneDrive"
There's a VFS plugin API for anyone who wants to implement that kind of thing.
It's unlikely we will do this ourselves, at least in the near future, as there are so many different cloud service providers that the amount of effort required to implement and support (forever!) each one is not worth it compared to the number of people each one would help.
Also, Google Drive, OneDrive and DropBox all provide their own clients which already work with Opus, and we don't see much value in reinventing their wheels.