.. because Hazzikostas said they will not add any new borrowed power systems anymore, but focus on core components. Actually, the whole world questing progression was based on a renown system or something like that having time gates in place.
So what is going to replace it? A new reputation grind? Do world quests simply drop items as like in BFA world questing? Are there badges as like in MoP with limited weekly efforts?
Or do they really go the path of removing world content in endgame completely? Do they want everyone to play dungeons and raids for endgame?