1) Come out with a phone case that can hold the AirPods, and ideally charge them (Maybe enhance the battery case they already have?). I don't want yet another thing in my pocket, especially one I also have to remember to charge. Let me charge my phone, which can then charge my airpods. Let me always have my airpods on me by attaching them to my phone.
2) Make a "Find my Airpods" feature that plays a really loud ass beep out of the headphones when they inevitably fall out of my ears/hands/pocket/bag/everywhere
3) Enable more tap commands than just Siri. Siri sucks so much. And I don't want to be on an airplane loudly repeating "Turn up the volume"