Intel Comet Lake-U will allow <14-inch subnotebooks like the XPS 13 to carry processors with 6 physical cores. The system will launch within weeks of the Ice Lake-powered XPS 13 2-in-1 for a starting price of $900 USD. Visually, there will be no changes between the XPS 13 9380 and XPS 13 7390.
https://www.notebookcheck.net/Dell-XPS-13-7390-will-be-the-first-subnotebook-with-6-core-Core-i7-Comet-Lake-U-options-when-it-launches-this-September.429531.0.html