I wasn't trying to refute your comment, nor to imply that you said x86 is on its way out the door, but we are talking about the future of x86 after all.
Intel has already driven its prices downward aggressively [0]. That seems to be part of their strategy to contain AMD while they get their own business firing on all cylinders again, and it's going to be true regardless of whether the majority of the market demands x86 or not. The more that Intel can pressure AMD's gross margin, the more relevant Intel's synergies from being an IDM can become.
[0] https://www.barrons.com/articles/intel-is-starting-a-price-w...