Chuckle. The "pro" series displays that Dell (Ultrasharp) , HP (Dreamcolor or UHD Z ) , Nec ( PA series ) , Ezio (colorEdge ) all have USB hubs in them. So the notion that most pro want monitors sitting on their desks that solely have video data capability is at serious odds with the reality of what the leading vendors in that market are selling. Nobody asked for but they are all doing it.
For example Eizo has a relatively new DCI 4K HDR monitor
https://www.eizo.com/products/coloredge/cg3145/
Yes ... it has a 3 port uSB hub in it.
From what I have seen, the main use of USB hub on this class of display is to ensure a port is available in close proximity for plugging in hardware calibrators. And the second reason is these class of displays usually have built-in KVMs, since they most-def have multiple display inputs, a very likely use case is to hook up to multiple source machines where the user wants to share input devices with via multiple USB upstreams.
So I think some low bandwidth USB ports are welcome for most folks, but they probably won't trust critical stuff like a portable drive to be hooked via the display anyway. (I wouldn't). The TB3 single-cable solution is more appealing to portable docking users, for desk-bound scenarios it is not a must.
Yes cranking up the screen size up to 5K HDR or 8K ( and data hog HDR cherry on top of that) will push the solution out of a single TBv3 cable solution that doesn't involve compression. The market analysis problem there is how is that the market norm?
The reality here though is Apple hasn't introduced a new monitor that had no power providing features since 2004. That is 14 years ago. Apple started on the power providing monitor track in 2008: 10 years ago. In those ten the Mac market has grown considerably and the revenues and profits totals are way up. Apple is extreme unlikely going to reverse direction and optimize their product line up for the mix of Macs they sold in 2003-2004. Reality in 2018 is different. Mac Pro is going to be an even smaller portion of the Mac line that they were in 2008-2010 ( 2010 is when the last "display only" 30" product was discontinued). The iMac Pro is going to skim off even more.
Apple probably is going to continue to do the different track they have been on. A "Pro" monitor with a singular input on it. Probably almost no buttons ( configuration there software control panel) and yes Thunderbolt v3.
I do think that's what Apple will make, not particularly because the users need it, but more inline with the older display lineups where it spokes more with a design language. A headless Mac without the screen presence of an iMac, and without an even more elaborate presence of an Apple logo at the back of the MBs, needs some visual anchor to be identified with. Not saying folks who want this is any more or less important than a user of say an Eizo, but definitely when a cable-free solution is of importance to some usage then Apple has no problem delivering it. It is not like an actual specs-demanding user can't plug his own display anyway and forgets the Apple offer even exists altogether. That's exactly what most of the MP and PPM users did.
A much stronger case as noted by someone above is to tie into the rest of the Mac ecosystem. TB3 is a much more meaningful I/O for a portable where you want a single cable solution, on top of the extra bandwidth reserved for rest of the chain. As long as the rest of the Mac lineup still has TB3 as the main (if not sole...) I/O, then the Apple Display will almost definitely have it. The remaining question is if the mMP doesn't solve the TB loopback issue inherently, then it opens up a possibility for an extra DP on the display.
For folks who want something different a new Mac Pro with 4 TBv3 sockets , 2 HDMI and/or mDP sockets, and a open x16 slot could be hooked up almost every "pro" monitor out there. through some combination of configuration options.
Even 8K.
two TBv3 ports with type-C to DisplayPort cables ( or one of mDP sockets if present).
one TBv3 cable to desktop port dock for easy front facing I/O ports. ( not behind monitor either).
three cables up to desk.
If the internal AMD GPU doesn't pass Nvidia focus then a card in the 2nd GPU slot and nominal mainstream hook ups via cards mDP and the USB socket(s )off the box. Three cables up to desk.
For a 4K HDR Thunderbolt could have 1 cable up to desk and a USB controller bandwidth off the ports on the monitor ( and not sub 8 Gb/s USB hub).
The first goalpost Apple needs to reach is HDMI2.1 or DP1.4, which enables DCI-4K at HDR 10-bit 60Hz. This is needed to properly grade a HDR1000 source content. I don't know if the TBv3 spec can catch up to this in time, but either way this amount of bandwidth also enables high Hz dual screens for VR or multiples of 4k/5k extended setups. I personally am not sure about 8K. It is a proof of concept as of now, but the application is questionable for a desk bound display. The pixel pitch is way too high for typical desk viewing distance of 2-3 feet. It would need to be a 40" screen to match the 5K@27" PPI of approx. 220, which is deemed "dense enough" for human eyes. The bandwidth is better served on refresh rate or color depth etc.
The 4K UltraFine option pretty much sucks when it comes to the USB ports on the monitor. They are simply USB 2.0.
As far as disavow goes, that is hardly credible. Those two solutions have only video input. In the rest of LG's lineup at roughly similar price range ( > $540 ) can you find another model they sell that has one and only one video input?
For whatever reason it appears that Apple abandon the development of these monitors and made some deal with LG to finish pushing them out to market. ( Apple industiral design clogged up with other higher priority work? some bean counter went Scrooge McDuck and steve'd them. something along those lines.)
The initial quality issue I think Apple would avoid. I suspect they have learned a lesson that nobody but Apple wants to build something quite like that and so they should probably design it. Very likely it will have a Rip Van Winkle product cycle where they will disappear for 3-4 years at a time. ( 30" monitor took 6 years to replace/retire. )
Absolutely no display seller would want the product to be locked to just one specific brand of user. The rest of the specs are already self-limiting in positioning itself towards specific professional use cases, or cost-cutting thus feature-cutting for consumer products.
As for Apple, I am unsure if it is a (visual) design goal to keep as few ports as possible, or a sort of lockin to limit input choices on their displays. Historically, even with different generations of I/O standards on Macs, the corresponding display usually comes shipped with it ready to be plugged in by all Macs sold in the same window. But this was during the time when a mini-DVI to DVI dongle is bundled free in box for every MBP purchases, which as we know isn't the case anymore in the bean-counting era.
Apple's track record with discrete display has not been revolutionary at all. They had adopted changes as they appeared on the market ( LCD panels, hiDPI , 5K ), but there little to show where Apple was all outer their by their lonesome.
Yes, it is a wild misconception that Apple has ever been a leader in display business, in terms of features or even quality. The lack of hardware re-calibration, the lack of input choices, the lack of 360 degree stand, all standard if not necessary features on a professional display. In recent years they even started forcing glossy lamination without a BTO choice for matte. I am positive their positioning in display has not changed even this time around, they just got fed up
with the LG Ultrafine issues which hurts them much more than anticipated in a marketing perspective.
The only thing here is that it wouldn't be surprising to see Apple move their 120Hz iPad Pro work up to the display. It isn't 120Hz for gaming spec porn chasing sake. It would be more the smoothing out the screen for more normal, app display ( not necessarily 3D stuff. ).
Apple has some catch up to do in HDR compliant monitors... not particularly in the "unseen feature before" category
A 120 or even 144Hz display will be welcomed; creative arts, 3D, VR, or general interfacing is helped for various degrees. As for HDR it depends if Apple values their FCPX or even FX/grading audience greatly.