The Government of Canada has developed the Harmonized North American Profile (HNAP) of ISO 19115:2003. It extends ISO 19115:2003 (NAP), mainly to include bilingual data elements, but also specific codelists, keywords, organization names, and other business rules.
Specifically to bilingual data elements, HNAP specifies that, for example, the title must be represented in both English and in French. It does so by modifying the representation in ISO 19115:2003 (NAP):
However, when the latter is imported into ArcGIS, then exported back to XML, these extra tags have been stripped from the metadata record.
So, my question is, can ArcGIS Pro be extended to support extensions to the supported metadata standards and styles?