Luckily, for those consumers who don't want battery or connection issues, they can use the Lightning earbuds Apple will include with the new phone.You can drop quoting McIntosh etc, really not relevant to the wireless v wired debate, you are better quoting something like the sennheiser monument 2.0 wireless or B&O H8 .
when talking about wireless, get yourself a quality headset see above, as in one that can reproduce quality recordings.....and listen wired v wireless , differnce is obvious. That is sound quality
Part 2 is connection, I've tried every highend wireless headset, all have constant connection issues, some take multiple attempts, firmware updates, and drop outs due to interference .
Part 3. Battery life, and annoyance of charging
Like networking , find me a major company or any professional Setup that chooses wireless over wired? Wired is still the standard for stable secure setups for very good reason.
So yes, I have a B&O H8, and I've had enough of paring issues and drop outs , along with inferior sound quality that I can say from my experiece wireless is not worth the hassle right now, more to do with connection issues actually, that I used it wired.
If you are a fan of apple earbuds .... Well in which case be it wired or wireless , they are not going to reproduce high def audio so will sound much the same. Though enjoy connection and battery issues. The average so consumer does not want the hassle of recharging headphones every night in my opinion.
Moving forward, Bluetooth headsets will only get better and better. As far as the current crop, for 98% of all my personal headphone use cases, my Jaybird X2s perform fantastically. I have never had a single connection issue (they connect immediately, stay connected, and switch their connection to a different device easily and flawlessly when asked) and they sound better than any other Bluetooth buds I've tested, and most other wired buds under $100. When I really want to hunker down with a great symphony or some lossless files I have on my iPhone and I'm away from my home stereo, I bring my beloved lamb skin B&W headphones. About 2% of the time. Wireless is here. To stay. It will never sound as good as wired audio, but it will get pretty close for most people's ears.