Unused portions of zones?
You probably haven’t been in that area when a dynamic event was going.
Some of them have fairly long cycles and can take hours to play out. Find the dynamic events, follow the chains – many culminate in epic Meta events and world bosses.
Go into them …
You never know what stuff you will find. This game has a truck-load of hidden stuff. All of it is cool content.
Explore, explore, explore.
Each map is incredibly detailed and has little to no “CTRL-V”. If you put a POI on every single town, village or unique structure, can you imagine how cluttered the map would be?
[Currently Inactive, Playing BF4]
Magic find works. http://sinasdf.imgur.com/
So basically, these parts of the zone ARE being used for something, it’s just likely between events? That is pretty much what I assumed, that or personal storyline missions, but I couldn’t imagine they’d include so much map for one specific character path, then do that for each path, makes no sense.
Is there ever anything going on in these areas besides events? Ever a hidden chest or some loot at the top of a tower you can jump up? I don’t mind exploring but doing unnecessary platforming isn’t really great for me so I don’t go out of my way to platform to the top of places just to see the view.