Seems more likely that they'd upgrade the screen at higher tiers instead. They did something similar with the M1/2 iPad Pros had 8GB of RAM while the expensive

Seems more likely that they'd upgrade the screen at higher tiers instead. They did something similar with the M1/2 iPad Pros had 8GB of RAM while the expensive 1/2TB models ($1500/1800 for the 11/12.9") got a quiet bump up to 16GB.