AirPod Pro 4, coming in 2025, will like have a feature to let you choose custom alert sounds, tied to ios 19. And it will be heralded with enormous classy custom Helvetiral fonts in a multi parallax scrolling site announcing "we've heard the future, and it's quiet". Or... "If you listen carefully, you can hear the future".
Or they'll provide haptic in-ear custom vibrations in AirPod Pros 5, and their slogan will be "Your ears never felt better".