Rumored Mac Pro & Mac Studio aren't dead -- but neither are now expected at WWDC
A very reliable leaker claims that WWDC 2023 will not see the long-delayed Apple Silicon Mac Pro, and that the Mac Studio will not be refreshed until it can have an M3 processor.

Apple's current Mac Pro
In an update to his previous claim about MacBook Pro models coming out at WWDC 2023, Bloomberg's Mark Gurman has spoken of the delays to the desktop models MacRumors podcast.
Apple has confirmed that a Mac Pro is coming, and Gurman says he still expects Apple to release an updated Mac Pro during 2023.
But he says the New Mac Pro is at least unlikely to be at June's developer conference. Related to this, Gurman expects that Apple has pushed back the Mac Studio both until an M3 version is possible, to avoid it taking sales away from the Apple Silicon Mac Pro.
While standing by his claims about MacBook releases, Gurman also said that the 15-inch MacBook Air was originally supposed to launch in 2022. He believes that this means that when the time comes for a refresh to the smaller 13-inch MacBook Air, that model could get the M3 processor sooner than its larger sibling.
Gurman also spoke of the forthcoming Apple AR headset, and said he expects that both it and the next few generations of it, will each have a two-hour battery life. The headset has variously been rumored to feature a virtual keyboard of some description, and Gurman says he expects a "finicky... in-air-typing" system.
The headset is persistently rumored to be unveiled at WWDC, but that would reportedly mean Apple announcing it before its own engineers think it should.
WWDC runs from June 5, 2023, through June 9, 2023, and as ever the major announcements will be in Tim Cook's keynote presentation on the first day.
Read on AppleInsider

Apple's current Mac Pro
In an update to his previous claim about MacBook Pro models coming out at WWDC 2023, Bloomberg's Mark Gurman has spoken of the delays to the desktop models MacRumors podcast.
Apple has confirmed that a Mac Pro is coming, and Gurman says he still expects Apple to release an updated Mac Pro during 2023.
But he says the New Mac Pro is at least unlikely to be at June's developer conference. Related to this, Gurman expects that Apple has pushed back the Mac Studio both until an M3 version is possible, to avoid it taking sales away from the Apple Silicon Mac Pro.
While standing by his claims about MacBook releases, Gurman also said that the 15-inch MacBook Air was originally supposed to launch in 2022. He believes that this means that when the time comes for a refresh to the smaller 13-inch MacBook Air, that model could get the M3 processor sooner than its larger sibling.
Gurman also spoke of the forthcoming Apple AR headset, and said he expects that both it and the next few generations of it, will each have a two-hour battery life. The headset has variously been rumored to feature a virtual keyboard of some description, and Gurman says he expects a "finicky... in-air-typing" system.
The headset is persistently rumored to be unveiled at WWDC, but that would reportedly mean Apple announcing it before its own engineers think it should.
WWDC runs from June 5, 2023, through June 9, 2023, and as ever the major announcements will be in Tim Cook's keynote presentation on the first day.
Read on AppleInsider
Comments
That being said, I have left several comments on here to this effect: a Mac Pro is whatever Apple calls a Mac Pro. The first iPhone had a 3.5" screen, 128 MB RAM, a single core RISC SOC and the original plan was no app store with an emphasis on HTML5 apps. Look at an iPhone 14 Pro Max by comparison. Also, compare the original iPod to the iPod Touch. The original Mac Mini to the M2 Pro Mac Mini. The original Apple TV to the current one. The iMac G3 to the current iMac. And so on.
Apple can openly concede that the old Xeon W-based Mac Pro was a failure - too big, too noisy, too expensive, had crazy power/cooling requirements, was rarely updated, sold in much lower volumes than workstations from HP, Lenovo, Dell etc. - and the concept is being scrapped. And they can market the new Mac Pro as a innovative computing segment with use cases and markets that they define.
Why do this? Because frankly ... they don't have a choice. First, Intel has made up a lot of ground in a very short time. Second, the best workstations no longer have Intel Xeon W inside anyway. They have AMD Threadripper. Would even an M3 Extreme Mac Pro outperform the AMD Threadripper 7000 that we are going to get in September? If so, it will only be due to the 7000 still being on a 5nm process. Meaning that when the 3nm Threadripper 8000 comes out in early 2025? Apple won't be able to compete with general purpose Intel and AMD workstations on CPU, GPU or RAM. So, position it as a special purpose device that is better for the things that Apple claims in the ways that Apple says that it is.
I wonder if Apple is cooking up a method of multiple ultra class SoC in the same system. Imagine 5 daisy chained M3 Ultras (or even better an unannounced Ultra Max) in the Mac Pro.
The Mac Studio is the perfect DCC machine, so don’t mess with it (except add some pizzaz please). Let the king of Macs have the modifiable tower, with ooodles of expansion and RAM slots even if it costs a few TB/s in interconnect bandwidth.
Just ship the damned thing!
I bet sometime within the next week or two they'll either be back on for WWDC or they'll announce it as being release late this year. They can change their mind as much as they want so they're always right.
https://www.engadget.com/m1-ultra-benchmarks-upscaled-video-143024262.html?guccounter=1&guce_referrer=aHR0cHM6Ly93d3cuZ29vZ2xlLmNvbS8&guce_referrer_sig=AQAAAJyvyZn46gzAtB4gfOuQkL-X26_bmsrwLcXz3gT3Y7gnBydg4rHLSaSfwL8QM5gqeHvP1hcJXvMQF1FR21QaVKV39rO8C2mjf3GfOUa9p4t8b1zEg84e_DLzirXx4_hs0R7SET7IPeesl_P75aTLTTtSwt7VQj1SQWBaE3lrhId8
"The M1 Ultra does best when its hardware accelerators can kick in. These are the parts of the chip built to speed up specific tasks, namely video rendering and AI processing. In a test processing ten 8K video clips at once, the M1 Ultra did the job in just 29 seconds when its accelerators were able to help out. This was about twice as fast as the PC we were testing, despite it having a 16-core AMD 5950X processor and Nvidia RTX 3080 Ti graphics card."
I would be shocked at this point if Apple doesn't announce Xcode Cloud moving to aarch64 at WWDC. That implies an ARM Mac Pro or a rackmount ARM server, even if only for their internal use. It may be announced for some date in the future, but it will be announced and previewed at least.
People keep saying the original plan was no app store, but that was never true. It was crystal clear from the moment people started poking around inside them that the plan was to allow native applications in the future, but the system wasn't yet organized enough to let other people in. They pushed web applications simply because the phone had a competent browser and could run them before the internal cleanup was done.