I don't mean that in terms of mechanics, but just in terms of the lore; remember, the engine of Death is broken, and all souls pour endlessly into the Maw instead of going where they should.
If time in the Shadowlands moves backwards, we could get an expansion set in the past out of the end of Shadowlands once we return to Azeroth and find everything looking strange.
People wanted to be seen as adventurers instead of heroes, right? Well, slap us in a time where our names and deeds mean nothing, before the Dark Portal even opened, and you've got an opportunity to do just that.
I can't accept there's no story potential, when there's literally anywhen to choose from.