I picked Cataclysm timeline and I can’t turn in this quest.
Everytime I enter the throne room the npcs phases out and there is an adult Anduin there.
I have no other quests in my questline. There is no quest there.
What else can I do?
I think this is long standing issue. Drop the Hero’s Call quest and find Grand Admiral Jes-Tereth in the Throne Room. She should have quest “Twilight Shores” which sends you to Twilight Highlands.
Sadly I cant seem to get it to work:(
Shes there but when I get close all npcs disappear, Genn Greymane appears and an adult Anduin sits on the throne 
Did you abandon the Hero’s Call quest?