Sometimes where you need to go for a particular quest is not immediately obvious, especially when it is mostly within your own borders and you can't easily see the blue outline.  What I suggest is, for quests where you know where to go, I think it would be excellent if the destination of the current quest was painted on the minimap, and is also more easily observable when you are close to it (maybe moderate glowing or some such).  So either when you receive the quest, or you open it up in the Quest book, you can open it on the minimap - *provided* that is a quest where you are told where to go.  Or if it is a quest where it could be in a wide(r) area (or you don't want to tell the player exactly where it is), to have the area of the map that it could be in to show on the minimap when you click the appropriate button in the Quest dialog, or when getting the quest in the first place.  Also for when a quest does not show the specific location, have the option to not indicate the actual location surrounded by a blue ring, just the area which it is in on the minimap, unless you come close to it with one of your units, then it could glow softly.

Btw: what do people think of this related post?

Best regards,
Steven.