To review:

these are all related to the wb_terms migration and are not yet ready:

wbt_text
wbt_type
wbt_text_in_lang
wbt_term_in_lang
wbt_property_terms
wbt_item_terms

--------------
could be dumped, probably useful

flaggedimages
flaggedpage_config
flaggedpage_pending
flaggedpages
flaggedrevs
flaggedrevs_promote
flaggedrevs_statistics
flaggedrevs_tracking
flaggedtemplates
wbqc_constraints
wbs_propertypairs -- really only useful for the property suggester, but public so why not

--------------
obsolete or deprecated

ep_articles
ep_cas
ep_events
ep_instructors
ep_oas
ep_orgs
ep_revisions
ep_students
ep_users_per_course

geo_updates   -- removed from extension
geo_killist   --  ""

flaggedrevs_stats    -- replaced by flaggedrevs_statistics
flaggedrevs_stats2
--------------
may not be useful

global_group_permissions  -- CentralAuth related, doubtful there's a use case given we can't dump the user table
global_group_restrictions
global_user_groups
localuser

pagetriage_log           -- all of these are used for enwiki page triage only, a mirror might only care about new triage
pagetriage_page             Are they useful for crunching numbers for researchers? Unclear. Can't see a bot use case though.
pagetriage_page_tags
pagetriage_tags


wb_changes                -- these relate to propagation of changes from a wikibase repo (e.g. wikidata) to client wikis
wb_changes_dispatch
wb_changes_subscription

wb_terms                  -- deprecated

wb_id_counters            -- this should be rebuilt by looking at the largest id in use for items/properties/lexemes;
                             if it is simply dumped and used, it will be out of sync with the other tables
wbqc_constraints          -- config settings for WikiBase Quality Constraints extension provides these

wikiset                 -- from CentralAuth, only exists there, not useful generally for mirrors

-------
already dumped

wbc_entity_usage
wb_items_per_site
wb_property_info