I could see the iPad Pro getting the m1 or a chip more specialised to the iPad Pro. I still stand behind a previous comment I made in these forums that the m1 was being designed for the iPad Pro and Intel buggered up. Apple having this chip in the works let them ditch Intel.
Intel buggered up a long time ago. Apple was just waiting for all the pieces to fall into place before they released the first Apple Silicon Macs and they used the iPad Pros as test bed for the chipsets.
A9/A9X is when they matched Core 2 Duo (2008) performance. By A10X, Apple already jumped around 4 years worth into Ivy Bridge (2012) and all of that at a fraction of the power consumption. By the time A12X rolled out and they were matching current i5/i7s, the only question in my head is "How much performance overhead is required for emulating x86-based Mac apps?". They've seriously surpassed my expectations with M1 and Rosetta 2.
What you say makes sense IF AND ONLY IF Apple decides they want to wind down their Mac lines and I am not sure I see the logic in why they would want to do that.
Not really. Even in the PC world, there's room for both 2-in-1s and traditional clamshell laptops. I know automotive analogies are overused but the comparison is quite apt. There's a place for motorbikes, compacts, sedans, crossovers, SUVs, pickup trucks and ten-wheelers.
One thing I do expect regardless of whether Apple adds Dex-like mode and Rosetta to the iPad Pro or even release a brand new hybrid entirely is that the experience will be good. It won't be like the mess that is iOS apps running on M1 Macs.