Normally an evolving world feature would dress up the open world and it’s just kind of there for players to enjoy. But how about actually turning that area into an event that can be featured on the festival playlist? Similarly to how you’ve done with the oval racetrack and the christmas winter circuit on the stadium.
Why not utilize the evolving world and create an area on the map that’s suited for playground games? Or revamp an existing one? Or use a player-made eventlab?
For example last year you’ve had a summer party themed festival playlist where the stadium looked like this:
I could imagine this area turned into a playground games event. This way you can bring a lot more players to check out your evolving world + it will serve an actual gameplay purpose as oppose just sitting there. And it would fit perfectly into another potential summer themed festival playlist. Also gives you a chance to utilize existing events within the game and gives them a fresh spin.