I completely derp'd that! I now understand what you are looking for. Unfortunately, I'm sure Apple will make an adapter for it. I'm just going to stick to my Bluetooth headphones...not happy having to carry around adapter after adapter after adapter for every Apple product.
I'm not sure Apple will make one. They may leave it to third parties. I do expect them to add one to the Mac when they announce the new MBP and MBA later this October. It's just too bad they didn't have one from the beginning to encourage use of the Lightning headphones. They way they did it, they basically prompted the continued use of the headphone jack with a customers old headphones, adding insult to injury, that they couldn't even use their new Lighthing EarPods with their Mac, not even the Retina MacBook!
This particular adapter is problematic. While the USB and Thunderbolt adapters should be pretty straight forward, the 3.5mm adapter presents challenges unless Apple updates MFi specs to accommodate it. Essentially any 3.5mm adapter will require a power source to convert the analogue signal to digital to go into the Lightning connector, where it is then reconverted to analogue. So that makes it kind of a redundant and bulky solution, that has to be regularly charged. Unless, Apple updates the MFi specs to allow for a Lightning connector to receive an analogue input which does not need to be converted for use by the device, like headphones. In theory, the adapter would have a Lightning chip that tells the Lightning headphones there's an incoming analogue signal, and to bypass the internal DAC and send the signal directly to the transducers. That's definitely possible, without upsetting Apple's digital Apple cart, and makes the most sense. And, perhaps explains why we haven't seen this particular adapter yet.
But maybe Apple will introduce the adapter with the new Macs ...
