On January 28, 2018, at the Royal Rumble, Mysterio made a one night appearance, entering as a surprise entrant at number 27 in the Royal Rumble match, eliminating Adam Cole before later being eliminated by Finn Bálor. At the Greatest Royal Rumble event on April 27, Mysterio participated in the 50-man Royal Rumble match, but was eliminated by Baron Corbin. On June 26, Mysterio was revealed as one of the pre-order bonus character for WWE 2K19. On September 19, it was confirmed Mysterio had signed a two-year contract with WWE.