Something that User:GhostWolfe raised with me recently was the lack of consistency over naming quests and questlines where two exist with the same name. This occurs with items, locations and existing quests.
For example:
The Horse Gate - place
The Horse Gate (quest) - city quest
Trade - action type
Trade (Vol FB) - sworn sword quest
The Greenseer's Glass - city quest
The Greenseer's Glass (fb) - questline
Blood in the Water - chapter
Blood in the Water (Vol I) - city quest
Olene of Braavos - person
Olene of Braavos (Quest) - city quest
There are a lot more examples. Can people suggest a system that we can use consistently and add to the style guide?