Interesting..
"As we reported our two sources who work in major companies operating in Enterprise, the CPU Broadwell-EX / EP have disappeared from the latest Intel roadmap.
Our sources tell us that Intel did not send them any official notification regarding the cancellation of the actual CPU Broadwell-EX / EP, but it's still strange that these have disappeared from official documents under NDA. At this point it seems that Intel has decided to leapfrog these CPUs to go directly to Skylake-EX / EP.
In fact, this choice may not be so unrealistic as Broadwell, compared to Haswell, actually brings no significant new developments, but a slight increase in the CPI. Only Skylake will use the new AVX instructions and, perhaps, of some important new features that can make a difference within the multitasking / multithreading.
After the sudden appearance of the platform Kaby Lake, between Skylake and Cannonlake, it seems plausible that Intel is scrambling the cards as much as possible to maximize the effectiveness of their future product lines, avoiding both the marketing of CPU (eg , Broadwell-D appeared only in two variants) not too profitable in the departments of R & D projects of limited interest."