A new report from Bloomberg confirms that Apple is working on a set of on-ear or over-hear headphones. However, in a very Apple-like twist, the design is said to feature interchangeable parts to emphasize personal customization.
https://www.notebookcheck.net/Apple-premium-noise-cancelling-headphones-said-to-be-highly-customizable.461796.0.html
Total fashion item approach, ok, I'm certainly not worried about the sound quality.