Are we getting to the point where parts of the kernel could benefit from running on a low power, cheap, less featureful CPU/co-processor, so that the beefy, sup

Are we getting to the point where parts of the kernel could benefit from running on a low power, cheap, less featureful CPU/co-processor, so that the beefy, suped up, SIMD, floating point instructioned super cores can be dedicated to rendering cat videos and sending IMs?