I want thunderbolt 3 ports and two of them. You may kill the audio jack. I am one bluetooth for external sound anyways. At least 4K 60hz native support without third party dongles for external displays. My 2015 model is able to run 4K@60hz with the dongle linked at the bottom of my post, but I would like a smoother transition. No double or triple cabled bridging just to get basic stuff up and running.
You're using your MB exactly the way Apple expects you to. However, I'm sure Apple is not ready to drop the audio port just yet, especially since they don't appear to be ready to support USB-C audio, or Lightning products on the Mac yet. And as others have pointed out, there's no guarantee that Apple would replace the port with anything, much less a second USB-C port. If the MB 3 ends up being a mere spec bump, it will be at least another year before Apple addresses the audio port. I feel like the MB is the prototype for changes to the Mac, and we'll see radical changes there first, just like the iPhone will see them first over the iPad. The MB is moving toward the iPad as a hardware platform, and for three years then, its customers will have been trained to use a single port, and increasingly rely on wireless.
The bottom line is that the MB is likely a consumer oriented ultra-portable, targeted at customers who came to Apple via the iPhone and iPad. It's meant to be used on the go, or at least on the couch, with wireless cloud support. If a customer wants or needs to use a hard-wired accessory, then there's a port for that. If a customer needs a full blown desktop, or "pro" experience, then Apple assumes you'll plug in a hub that allows that kind of expansion, or you'll upgrade, no need to provide additional ports. I originally expected to see Apple support Lightning audio across all platforms, but now that it's clear they aren't, and aren't supporting USB-C audio either, then it's clear they are focused on wireless audio despite the inherent quality compromise. With any luck, by maintaining the status quo for another year, wireless quality will improve, but in any event products like AirPods, and a jack-less iPhone will make customers more comfortable with wireless audio, as it becomes more affordable and ubiquitous. If anything the next gen MB will only get thinner and lighter, making the addition of extra ports even less likely, even if they remove the headphone jack, which is actually a major stumbling block to making the MB any thinner. I actually wouldn't be surprised to see the USB-C port go away altogether as high speed wireless comes to fruition, along with wireless charging; or maybe an entry level model without it, like the 2-port MBP. But that'll likely be a few more years away yet.