The languages that are supported are determined by the availability of encoding schemes from multilingual technology providers. Each language requires a unique registration. Yes, NSI Registry will support native character set name servers. This is no different from the current capability for domain names to share IP addresses. For a registrar to initiate a transfer of a domain name, that registrar must be certified by the Registry in the language of the domain name they intend to transfer.
Domain names are unique registrations for each language.