There isn't more buzz around the Stratix 10 MX because it's a phantom chip. Intel's December press release clearly states that the chips are available but you can not buy one of these chips today. A blogger did some research and came to the conclusion that the press release claims were simply not true:
https://semiaccurate.com/2017/12/19/intels-claims-fpgas-hbm-...
In contrast, Xilinx released a video of their competing chip working with all channels running at the full 460GB/s on day 1 of silicon bring up:
https://www.xilinx.com/video/fpga/first-virtex-ultrascale-pl...
HP has GenZ, IBM is going to move from DDR or DDR buffers to CAPI attached RAM -- expect to see HBM2 attached to CPUs in 2019. I'd be happy to discuss that kind of thing in email.
Please disregard.
[0]: https://www.altera.com/content/dam/altera-www/global/en_US/p...