That seems to be the mssg loud and clear from Apple right now. Who would G.A.S. about Firewire or USB2 on a new MP system?
But then, who would care about a couple of extra USB3 ports - inconveniently tucked around the back so you can't plug memory sticks in, on a new MP system? How does it help a nMP user to plug their ethernet into the monitor rather than the nMP? What's the big deal with a single cable connection if you're not plugging/unplugging daily?
I'm not knocking the TBD but it is
a luxury laptop peripheral and designed as such. Exhibit 1: the MagSafe connector. Exhibit 2: rear-facing USB ports - only needed for your permanently connected stuff because it leaves your laptop ports free and accessible for memory sticks etc. Exhibit 3: Ethernet (see above - a Mac Pro already has two of those).
I'm still tempted by the TBD to go with my MacBook Pro - and might bite if I saw a discounted one - but I wouldn't consider one, even an updated one, if I succumbed to a Mac Pro and could have 2-3 3rd party displays for the same price (personally, I'd probably go for 3x24" 1200p screens).
Can't even count the "When" threads here. Almost a matter of IF or Legend
See above re. the TBD primarily being a laptop dock.
Apple will soon have an all-retina laptop lineup. Marketing-wise, they probably want a "retina" branded Thunderbolt Display to go with them.
That's a problem.
27-30" UHD displays may be great for viewing 4k video content, but the DPI is all wrong for a 27" TBD replacement.
5120x2880 would give the best 27" 'retina' experience, but 5k resolution isn't happening any time soon, when current tech is struggling with 4k.
My guess is that they're waiting for a 21-23" UHD panel small enough to produce a 21.5" 'retina' iMac or a matching TB display, with a 'looks like 1920x1080' pixel-doubled 'best for retina' mode.