I'm not sure I see it as backwards, really. I think this machine is the first laptop based on their efforts—publicized a couple of years ago—to reach out and get feedback from pro users. The things that seem "old" are probably just a realization that they can make their pros happy without alienating the consumer side—i.e., it's no big deal to ignore features you don't need (consumer), but is a
very big deal to have features you need taken away (pro). I very much doubt they'll put the additional ports on future MacBook Airs, for example. As for ports, I have to admit it's hard for me to imagine what they'll
actually choose to include; probably just the "big hits" from what you typically see on those annoying hub/docks.
FaceID would be nice (not bothered about the webcam, but I get it). I would love to see upgradable SSD, though I realize that's extremely unlikely (obviously RAM won't be upgradable with Apple Silicon, but that's a welcome change, imho). I miss MagSafe less that I thought I would, honestly, though I'm sure they'll do a good job of designing the new version. I definitely agree with others who love the single cable/charge-from-any-port option, so it will be interesting to see what they come up with—could be a magnetically "breakable" cable... Or maybe something like the new iPhones (as mentioned by others)... I suppose maybe a magnetic charging pad/contact that has the USB-C port on it? Dunno, I'm not an industrial designer!
I think the TouchBar was an interesting idea that just never really worked in practice. I often
want to use it, but since I touch type, I never look at the keyboard and thus never notice it. At the end of the day, it seems to me the QWERTY keyboard is just a very specific interface that's kind of impervious to innovation... I do think it's a bit odd that they'd go back to standard function keys, but I realize that's just me—maybe they'll have those little LED screens mentioned here a while ago, to make them more flexible/learnable? Of course, I get that some people have the function keys in their muscle memory—I'm just not one of them, so I'm kind of indifferent. Mind you, I certainly do prefer the physical ESC key on my 16" MBP (btw, I previously had a 2016 MBP which genuinely was Hot Garbage—worst Mac I've owned in 20+ years). One thing a new design probably
could improve is the way the key caps (surfaces) wear down and become shiny after a relatively short period of use (i.e., less than a year, in my experience). Obviously that's an aesthetic detail, but it would be a welcome (if minor) improvement, to my mind.
Oh! And a matte screen option would be awesome! I had a matte 2012 MBP and the screen was brilliant—maybe not as sexy on the desk, but much better in actual use.
....one other thing... I know people seem obsessed with edge-to-edge displays/tiny bezels, but I kind of hope they
don't got that route. This is one of those areas where people seem to have the weird idea that Apple "can't do it" (which is obviously absurd). It's a design choice not to make them tiny, and I'm totally in favour. I've never tried to find the actual research, but in my experience it's
not so nice to be reading right at the edge of a display—the boundary is visually helpful, imho. I'm absolutely just guessing, but I'd imagine the research supports my experience.