Did you hear about Shattered Timelines?
For those players that find more enjoyment in the open world, the team is excited to try a new experiment in Remix’s more closed system, introducing a new increased difficulty World Tier inspired by Diablo! Called the Shattered Timeline , where “everything went worse,” it will challenge open world players in new and exciting ways!
So the hope is that they’ll add this option to Chromie Time if it goes well in Lemix.
https://us.forums.blizzard.com/en/wow/t/feedback-retail-leveling-custom-mode/2077856