I'm also a gigantic fan of the AfterShockz (sp?). I also workout/run/etc. a lot and won't wear anything else. Not greatest quality sound, but I still find them so enjoyable. I've had the one I bought three years ago and battery still lasts forever (8-10 hours) as I do full day bike rides. Great for making calls while working out. Ok, enough promo (I have no connection to them at all).
Another fan of AfterShockz here, too -- I don't use them for running or workouts, though, I use them for just normal everyday listening to music or when watching a video.... There are those of us who need to depend upon bone conduction hearing aids/bone conduction sound processors and/or bone conduction headphones, as for various reasons the typical air conduction process through which most people hear is ineffective.
It's interesting to see that Apple is working on developing some sort of hybrid combo and I would guess that, yes, this is for those who will want to wear the special glasses for augmented reality and all that.