Is SDMX here to stay?

Yes ! Absolutely.

SDMX is sponsored by the main International Organisations that produce statistics: BIS (Bank for International Settlements), ECB (European Central Bank), EUROSTAT (Statistical Office of the European Union), IMF (International Monetary Fund), OECD (Organisation for Economic Co-operation and Development), UN (United Nations), and the World Bank.

SDMX is quality-assured to make things work. It is an ISO International Standard (ISO 17369).

SDMX incorporates a well-established governance system that means that it is responsive to new needs and technological changes. For example, requirements for new functionalities are passed through an open process called "Public reviews".