It turns out there may have been some additional Apple Intelligence features coming to iOS 18 that Apple didn't show off at WWDC earlier this year.

Specifically, you might be able to use AI to generate custom playlist art for Apple Music when iOS 18 launches this fall. This potential feature was spotted in some code in the iOS 18 beta by 9to5Mac. When creating or editing a playlist, there might be a "Create Image" button that would let you generate art, similar to how you can use AI to create emoji in the new version of iOS.