Apple is reportedly considering skipping the higher-end M6 chips altogether, which could potentially give enough time for higher-end M7 (in over a year) to use HBM

Considering, or being forced to consider due to the hardware crunch?

Who cares? If high-end M7 chips come out with HBM and actually compete with GPUs from this decade I'll be really happy. I'm also hoping for more than 128GB of unified memory in a laptop.