I propose this structure then, based on the discussions we've been having.

Waterfront District
-- South Pacific International Seaport (welcome and registration threads)
-- Lampshade Bar and Grill (general discussion, consolidating the LB&G and the Civil and Political Organisation Centre)
---- Badger Street (consolidating the NS Discussion Centre and news media)
---- Hall of Spam (spam games)
-- Operations Centre (admin and mod requests)
---- Moderation Back Office (moderation discussion)
---- Administration Back Office (administration discussion)

Treasure Island
-- Pacifica (consolidating Main Canon, Diplomacy, and Embassies)
---- World Forum (WF discussion)
---- Diplomacy (embassies)
---- Media (national news)
---- Facts and Maps (consolidating Facts and Maps)
-- Extra-Canon (non-Pacifica roleplay)
---- A1-0 (FT canon)
---- Aurora (Fantasy canon)

Government District
-- Assembly (public legislative discussion)
---- Private Hall (private legislative discussion)
---- Voting Chamber (voting)
---- THE MATT-DUCK Law Archive (laws, resolutions, and treaties)
-- Cabinet (public executive discussion and announcements)
---- Cabinet Office (private Cabinet discussion)
---- Ministry Private Offices (one password-protected subforum per ministry)
-- High Court (case submissions)
---- Conference Room (case deliberation and private judicial business)
---- ORCS and CSS (links)
-- Regional Security (public security announcements)
---- Cantina of Requisite Sustenance (private CSS discussion)
---- Joint Security Room (private CSS-Cabinet discussion)
-- Embassy Row (embassies and consulates, one thread per region/organisation)

Hall of Historical Records
-- Archives (all subforums would be kept)
-- Former Forums