The refreshed model will boast post-Pascal Max-Q graphics from Nvidia as well, but it will otherwise have the same chassis design as last year's Omen 15. The significantly faster refresh rate should reduce screen tearing and benefit greatly from the new Nvidia GPU options.
https://www.notebookcheck.net/2019-HP-Omen-15-comes-with-802-11ax-wireless-and-a-240-Hz-display.377916.0.html