Waiting that long for an M4 ultra would be playing the same game played so far: that is, saving "the most powerful M-series" chip until just before M5 hits... or perhaps
with M5 if that far out. Ultra only gets to be king of the Silicon (power) mountain for a relatively short time until M-next MAX is available with comparable specs. Thus, this rumor makes little sense to me.
Thinking with Apple's "maximize profit above all else" lens, my guess would be the M3 connector was dropped because the next Ultra will be its own chip. I suspect interconnect never worked as good as Apple hoped and did not have potential to ever deliver something close to 2X MAX numbers because it was- in effect- some kind of functional bottleneck that would never be overcome.
I will additionally guess that there's little chance "our most powerful Macs" will get to remain 2 generations of M behind and potentially 3 generations behind if this prediction is true... as that would have Apple still offering M2 versions of these vs. new (or heavily rumored impending new) M5 Macs hitting.
Instead, I would guess that Apple will FLIP the historical order and roll out M4 Ultra soon (even ahead of MAX)- possibly at WWDC or perhaps some unexpected summer event... with a broader goal of flipping the overall schedule from what it has been... to
STARTING with Ultra, then PRO/MAX and then base. Why?
- Most importantly, apparently Ultra Macs are the most profitable Macs per unit sold. Apple loves "most profitable." 💰💰💰
- As is, the window for those who crave "most powerful" Mac is short, because next M MAX is impending. But flip it and Studio & Pro would be "most powerful" Mac for the duration of the M generation.
- Those who burn with compulsion to have "most powerful" and "latest & greatest" would then have to face paying way up for M-Ultra Macs vs. satisfying half of that compulsion by choosing M+MAX soon after the relaase of Ultra. Conceptually, that should drive additional sales of Ultra-based Macs and thus see #1. 💰💰💰
While we believe we see patterns in what has only been a couple of generations of M-series chips so far, Apple has altered the apparent release pattern more than once already. There's nothing stopping them from flipping the order entirely if they want to do so. If M-Base is least profitable and M-Ultra is most profitable, it should not be hard to imagine Apple Inc wanting to flip the order in spite of how it has gone so far.
With this pure speculation in mind: M4-Base then M4-Ultra and later M4-PRO/MAX this year... and
then M5-Ultra, M5 PRO/MAX and then M5-Base next? Those waiting to buy cheapest Macs would be facing high rumors of NEXT gen M incoming... and thus get pulled towards paying up for something more than base since waiting for it would basically have the same issue as Ultra dragging in last and then having the next gen release and particularly next-gen MAX available only a few months later. For the entire buying period of a generation, Ultra Macs would be viewed as "most powerful" AND "latest & greatest" instead of only few a couple of months.
My wild guess: M4 Ultra soon, possibly ahead of PRO/MAX. And if so, Ultra then being
FIRST out in M5 in 2025.