Oh wait I can do almost all of that if needed with 4 TB3 ports and whatever additions (dongles or hubs) I choose. I can also drive 4 displays (I currently run 5 with MacPro).
Nobody is taking your beloved USB-C ports away. What people want is a couple of USB-A and maybe a HDMI port
as well without having an extra box on the table - which, incidentally, is what Apple offer with the 2017 iMac, the iMac Pro and the 2018 Mac Mini. ....because although it might be cool to connect 2 5k displays, a SSD RAID and an eGPU, sometimes its more useful to be able to connect a charger and four or five boring USB2/3 peripherals like backup drives, card readers, USB sticks, data projectors etc. without needing an external hub. The number of mini multi-port USB-C docks on the market ought to be a clue that people
do actually need that sort of connectivity on the road.
Even 6-8 USB-C ports would be better than 4 (but, of course, there aren't enough PCIe lines to support that many fully-featured TB3 ports, so some would have to be USB-only) - Even re-instating MagSafe would mean that you didn't have to 'waste' a data port by using it for charging (and wouldn't preclude connecting a USB-C charger to another port).
I'm worried that the measurement increase is due to switching to the inferior ratio of 16:9.
That would suck, but it would also be a "courageous decision" when squarer displays seem to be on the ascendent: the MS Surface Book (probably
the major realistic alternative to the MacBook Pro) and the Google Pixelbook have 3:2 displays.
(Also, sticking a 16:9 display in the same housing would
reduce the diagonal size - look at the Razer Blade Stealth or the Dell XPS15 and their "edge-to-edge - but whoops not the bottom edge" displays).
The main reason for going 16:9 would be to use a generic "so-called-4k" UHD display as per many PCs and which, so far, Apple have resisted.
Going 3:2 or 4:3 would be great, but I'm guessing that what we're really talking about here is something very much like the current 15" 16:10 form factor but with reduced bezels to squeeze in an extra inch... No suggestion that they're inclined to make it thicker to improve the thermals, add ports, increase the battery size etc.
It was such a brilliant and beloved innovation, and truly gave them a huge USP ( unique selling proposition) over all other laptops.
Mind you, it didn't save my MBP from taking flying lessons when the cable got yanked - and that was a fairly hefty 17" model. Summary: Someone tripped over the cable
wrong (actually, it was a dog, and a slightly thick one even by canine standards so it can be forgiven for not reading the instructions).
Trouble is, as Macs get lighter (and the 15" MBP has shed over a pound since Magsafe was introduced) the easier they are to yank off tables - its a trade-off between making the connector pull out
too easily and making sure they detach when yanked.
Look, I have no leg in this game. I am happily using my iPad Pro (which ironically has a better keyboard that at least doesn't jam should crumbs drop on it), and I don't see myself getting a MBP anytime soon.
Frankly, after last October's launch, my attitude was "wake me up when you can run MacOS on an iPad Pro" - because the iPad and A-series systems-on-a-chip are clearly where all the innovation is going now. Roll on the ARM-powered Macs, I say (I'm needing Parallels less and less as everything is going cloud-y and browser centric and most modern software should just re-compile for ARM with only modest work).
Part of the problem with recent Mac releases is Intel's messed-up schedule and their tendency to start marketing the hell out of generation X+1 chips before they've finished releasing all the promised versions of generation X. E.g. the Mac Mini: you can have a desktop-class CPU but Intel Say you can't have it with an Iris Pro iGPU or AMD in-package dGPU. That sort of problem wouldn't happen with the pick'n'mix nature of ARM.