8.0 to 9.1 upgrade

The documentation for upgrading from 8.0 to 9.1 gives three options for upgrading the existing viewables. It clearly states that the .edz files are migrated to a new format (.pvs). However, what the documentation does not say is if during the migration the files are published. When I migrate this data, does my queue get backed up does the utility migrate and publish at the same time?