I think it would be cool if they made a in game tab on the quest tab that shows which quests and quest chains you have done by zone. Kind of like the crafting unlearned tab. It would be helpful too where you can pick up on chains you have started and abandoned.
Also a tab of all quests you haven’t done too. I think it would be cool to have a all wow quests finished accomplishment. Also, Can we get grey exclamation marks?
THIS QUEST LOG SHOULD HAVE THREE TABS, ACQUIRED QUESTS, AVAILABLE QUESTS, AND FINISHED QUESTS.