Which of course is a big if
Sure, the world probably does need a touch-up, but us oldies remember Cata. And we especially remember how 90% of Cata was basically untouched by anyone at max level because we didn’t need the levelling experience. And we especially remember how Cata’s development went completely out of control and resulted in Certain Parts (The entire end of the Worgen story for Alliance for one, plus Abyssal Maw as the big one) being scrapped
Basically ‘cata but again’ does not a good expansion promise make because Cata wasn’t generally seen as the best