Apple came on board with Blender a while back and things ARE happening. I'm guessing they'll use it when presenting the coming Mac Pros.
I would expect WWDC 2022 for the debut of the all-new Mac Pro lineup, and would hope that Blender is a featured software...!
The interesting thing might be what hardware they choose to present it on, and against...?
I could see a possible Press Release for an updated 2019 Mac Pro; new mobo, Ice Lake Xeon CPUs, RDNA3 GPUs, PCIe Gen4, faster RAM; this would be before WWDC 2022...
Then, when Tim Cook goes to announce the new 2022 Mac Pro Cube...
"We recently released some amazing updates to our award-winning Mac Pro, powerful new Xeon processors within that gorgeous precision-machined aluminum chassis; but today we have something special for you..."
You know, marketing B$ & hyperbole...
Love child of the G4 Cube (proportions, if not actual dimensions) & 2019 Mac Pro (3D venting w/front intake & rear exhaust, latching mechanism & lift-off shell, double-sided mobo) 2021 MBP-style feet, 2018 Mac mini-style internal redundant PSUs, NO protruding handles...
Oh yeah, single half-length PCIe Gen5 x16 slot; for available PCIe expansion chassis; stackable with the Cube, or...?!?