How likely is it for AWS to come up with instance types offering more cores than x86? It seems like with Intel we'll be stuck at 96 cores for at least the next

How likely is it for AWS to come up with instance types offering more cores than x86? It seems like with Intel we'll be stuck at 96 cores for at least the next generation. 128 or more cores would spark my interest, especially on RDS. Graviton2 is built on Neoverse N1 which already has a reference design featuring 128 cores. N2 supports 192 cores.