In the future we want to migrate to a different internal pedigree format based on current SimpleJSON format.
This issue deals with support for reading this format (via Java API and in pedigrees). The immediate nee dis that it is easier to generate pedigrees in the new format when migrating old family studies, so all the components should work with the new format for reading.
Writing (e.g. extracting data to update family members) is not supported yet since pedigree editor will still save pedigrees in the old format (if a pedigree is in the new format, it will be converted to the old when pedigree editor starts)