Almost all the migration has already been done. These are some leftovers, which were fields that did not have a Drutopia counterpart for the most part and so did not exist at the time of initial content migration:
In addition, *Article* should also become a term in the `article_type` vocabulary (ideally with a name change to *GEO Original*). We undid this because many of these items did *not* have citations and at least some were not GEO Originals, see https://gitlab.com/agaric/sites/geo/issues/10#note_199134134