I just spent another few hours with a new MacBook (cleaning off AdWare mostly. Watch it everyone, I went years and years without seeing a single piece of Mac malware; now it is actually *rare* for me to work on one that doesn't have some form of adware installed.)
If the new machines actually have that MacBook keyboard that's a total non-starter for me. It's truly ghastly. I suppose if you aren't a good touch typist it might not make a big difference, but it's the single most important part of a computer's productivity for anyone that types well. I've never, ever, typed on anything as bad as that keyboard apart from really cheap membrane-style keyboards. It's really just that bad. Putting a keyboard like that into a piece of "pro" equipment would be a travesty. (At a guess the fastest I could *ever* type on it would be, maybe, 75% as fast as on the current MBPro keyboards).
Removing the Magsafe charging plug is also a mistake, from a consumer point of view. I'm sure it works great for Apple though; "Oh, you tripped over the cord and pulled it off the desk? That will be $2000 please....) I can't express enough how many laptops that MagSafe adaptor has saved in the Education sector.
Waiting to buy a new Macbook for eldest daughter's birthday present to replace her 2012 model (my 15'' hand-me-down to her). After an hour in the London Apple store we settled on the MacBook Pro form factor as the MacBook Air sacrifices too much (speed, Retina and ports) to be a bit lighter but virtually the same size. I totally agreed with her loathing of the 12" MacBook keyboard, so if the new models use that it guarantees she gets the current version. I am not only concerned about the keyboard but also the loss of Magsafe and SD card slot, and the inconvenience of dongles to use USB - there are too many current uses for USB to get rid of it yet.