If a new post by Chinese site Benchlife is to be believed, it seems that Intel may be running into problems with their 10-nm process, which could delay the release of the rumored Cannonlake platform. In the meantime, the company may release a third platform family based on the 14-nm node, called Kaby Lake.
There isn't much information about Kaby Lake, but Benchlife has a product table and diagrams, detailing a family of CPUs that wouldn't look too dissimilar to some rumored specs for Skylake CPUs we've seen. Desktop "S" versions of Kaby Lake would continue to use Skylake's LGA1151 socket, and they'd also have similar TDPs.
If all this is true, it means that for the first time in a while, Intel's tick-tock process has missed a clock signal. Cannon Lake was apparently meant to replace Skylake come 2016, but it seems Intel may opt to forgo the process shrink for the moment. We can only speculate about the reasons, but we'll definitely keep an eye out for any new information about this new stop on the company's roadmap.