Instead of power progression, Legion had cosmetics as incentives to participate in a variety of content. That’s the model that we should return to in Shadowlands.

Running content you don't normally do to unlock a cosmetic reward can be fun. If you don’t do it the most you miss out on is cosmetic, not relevant character progression. Also, assuming it’s not a timed thing like the mage tower, it’s something you can come back to and work on in future expansions.Who is going to go back to BfA to farm essences...?Essences should have been a system you grind currency to spend on. That way players could focus on the type of gameplay they enjoy the most and it would have been far less frustrating.The artifact appearances were so much fun to work towards. I hope we get to see that kind of thing again in Shadowlands.