Intel already has serious issues with 14nm (Atom chips delayed almost a year and still are not available for most manufacturers).
10nm (even with usual tricks of shrinking only some elements) require huge investment, and it seems that problems also rise exponentially and performance increase stopped.
https://benchlife.info/intel-kaby-lake-scedule-show-10nm-cannonlake-will-push-back-to-2018-10162015/
Turned out to be true.
Last updated info is that it'll only be small mobile CPUs.
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