Assuming the integral memory is too low, perhaps this weakness could be addressed by
1. Compiling new WCG projects with less memory system reqs.
2. Designing a way external memory can be added and still accessed by each core when needed.
Or, just wait a few years, and hope someone will start manufacturing such chips with enough memory for us WCG crunchers.

There are 3.5 million core and china now has a ten million core systems

Knights Landing could be for us, if we have a project that can use it. There are 72 cores based on a "highly modified Silvermont design. Silvermont is the name for a family of processors including Bay Trail, Avotron, some Celerons and Pentiums, etc.

The two biggest modifications I see are Knights Landing cores can run 4 threads per core (288 threads total) and each core has 2 AVX512 vector units.

The problem is none of the WCG projects now use AVX institutions, much less AVX512. So most of the potential of the chip would be unusable now at the WCG. It would also need a lot of memory to run 288 WCG tasks.