Yes, I’m going to predict an update of M2 Pro and Max - on 5nm - for the MBPs this year.
Why? This is Apple’s ‘tock’ cycle in chip terms and is literally just a case of swapping out the SoC without the need to invest in other upgrades. In other words, it’s an easy update. Apple doesn’t need to wait on hand and foot for Intel anymore - the designs and production are on their terms.
I doubt it will even be given considerable time upon reveal because M2 vanilla already paints a picture of what to expect. The arrival of 3nm, however, could potentially bring new designs and benefits.
But also, revealing M2 Pro and Max this year is more a means to an end in order to get the Mac Pro out the door. After all, would Apple really reveal its Mac Pro SoC before the lesser Pro and Max chips?
I believe part of the reason why Apple chose to wait until the M2 generation for the Mac Pro was because of the greater memory bandwidth and RAM capacities.
Finally, as an M1 Pro owner I would say there’s no need to hold out. These systems are crazy powerful and they will be good for many, many years. If anything the M1 generation should run cooler than the M2…