2nd this^
Plus I have to wonder how much business the higher end model Beats actually do as they mostly appeal to mid-low price market know-nothing consumers. Hopefully Apple will just discontinue the higher end models to the satisfaction of many.
Brand aspiration and peer group purchases are a hell of a thing - I mean, we're on an Apple forum so people should be just as aware of that (while defending it as 'quality' 'service' etc of course - exactly as Beats enthusiasts do).
You see a bit more variety these days since we seem to be past Peak Beats, but it's still a Beatsfest out there on my commutes - and not the lowest end ones either. Despite fakes, other choices, etc I'm sure Apple is still making bank on the mid to higher-end models, and the Pros are an important part of the image that Beats is selling. Look at studios using Beats (yes they do) and artists prominently featured recording with one, and it's pretty much always a Pro.
The Studios were never 'studio' phones so they'll likely be retooled to be Lightning / wireless.