Michael Condrey has confirmed on Twitter that Leaderboards, Combat Record, and Custom Emblem features will be available in Call of Duty: WWII at launch.
Done. Done. And Done.
— M.Condrey in HQ (@MichaelCondrey) October 31, 2017
These three features were actually missing in Infinity Ward’s Call of Duty: Infinite Warfare last year during launch period, with no information on why; the features were added many months after the game released.