No difference whatsoever Wireless will never be as good if you care about sound. Wireless does suck if you care about sound and aren't willing to make any sacrifice in terms of sound. I do not want "good enough sound" and will not settle. You have different priorities and that is perfectly fine. If you are willing to sacrifice quality of sound for convenience. Just don't try and claim the sound quality is better than a good set of cans with a dac/amp.
Yes quality can be measured in many ways. The
fact today is you will not achieve as good a sound from a wireless solution. Many people who stream 256 kbps tracks on Apples crappy ear pods won't care one bit though and that is perfectly fine.
I will believe it when I hear it

. Maybe Apple will shock me and not use a bluetooth based solution that is better than wired(they won't). Even then having to charge and longevity of bluetooth cans is another issue for me on top of lesser sound quality.
Ah yes i figured you would bring that up. Samsung made that boneheaded decision to remove the slot and after consumer backlash they put it back in next iteration. They won't make that mistake again when it comes to headphones. People have power of wallets to influence corporations. Android manufacturers will not take that risk of taking away a feature because of the backlash that will ensue from the userbase.