However, since Derrickson is no longer helming the film and Cargill is no longer writing (Sam Raimi is directing and Michael Waldron is penning the script), it’s hard to say if Nightmare will make an appearance or not.
Both Doctor Strange writer C. Robert Cargill and director Scott Derrickson expressed a desire for Nightmare to appear as the villain in the sequel.
Believe it or not, Christopher Daniel Barnes is in good company when it comes to wanting Nightmare in the sequel.