Well packs do have the advantage that they can be swapped and replaced when they wear out. I think innokin made a mod with a swap-able pack a couple of years ago, but it wasn't a big hit at the time.So, at best it'll be a PC/Macintosh scenario? Each brand with their own packs? Might as well just get a pod...
Me, I intend to keep vaping my mech squonkers with 18650s. I've been complely content with them for ~4 years now and can't think of a reason why I wouldn't be for the rest of my life.