Why would they start producing M1X now when they are about to start A15? And as M2 will be based on A15 the rumour makes sense for M2.
Are you implying that the most powerful variant of the chip will be delayed for products that need it the most? That kinda doesn't make sense.
Are you implying that the most powerful variant of the chip will be delayed for products that need it the most? That kinda doesn't make sense.
Given this recent rumor, I think the M1 variant (M1X) is what is currently entering production, for summer (July-ish) product launch. But I think it is far more likely for the products we actually know are coming soon (the 14" an 16" MacBooks Pro).