Asus has started updating their Zenbook UX310 series with Kaby Lake processors. US pricing and availability has not been announced yet, but UX310UA and UX310UQ models have started appearing in Europe.
http://www.notebookcheck.net/Asus-Zenbook-UX310UA-and-UX310UQ-are-receiving-Kaby-Lake-upgrades.187955.0.html