I was just thinking that completing all the quests to get the explorer's guide should clear the fog from the entire map. after all, the idea was you were just supposed to fill in what was missing. that way, you could see the things you still might like to explore.
ITMT, is there a console command to reveal the whole map?
edit: nvmd. used unity console to reveal the map.
Edited by Ichthyic, 10 June 2018 - 11:51 PM.