I know that we haven't even finished changing the character pages, but here is my proposal for cities/towns/villages (This will probably change as more aspects are introduced to the story):
Description
Location
Inhabitants
Services/Shops
Defenses
History
Series Timeline
Trivia
Image Gallery
My proposal for "lines drawn on a map" such as provinces and the frontier
Description
Locations
History
Series Timeline
Trivia
My proposal for dungeons:
Description
Walkthrough
Mobs
History
Series Timeline
Trivia
Physical Locations: (Mountains, Forests)
Description
Plants
Mobs
Locations
History
Series Timeline
Trivia
If for some reason like a city does not have defenses of any kind, instead of leaving it blank with nothing there, just don't put it. However, if there is something like trivia, where its blank, as long as there can be stuff put in (even if no one wants to) it should be left blank and the section should not be deleted.