Kaby Lake-R has proven to be much more capable than the 7th gen Kaby Lake U-series to the point where performance can rival a Core i5-7300HQ. If Whiskey Lake-U will be similar, then it would be the perfect candidate for entry-level gaming laptops like the Asus ROG GL series.
https://www.notebookcheck.net/Asus-removes-references-to-Whiskey-Lake-same-references-pop-up-elsewhere-on-the-site.321128.0.html