Reitman, whose father Ivan Reitman directed the original Ghostbusters, previously caused outrage after saying the new film would “hand the movie back to the fans”.
The actor played the character Dana Barrett in the original two Ghostbusters films and had a cameo role – as a different character – in the Paul Feig directed reboot.
Sigourney Weaver has confirmed that she will appear in the next Ghostbusters film.
Speaking to Parade, Weaver said she would be reuniting with Bill Murray and Dan Aykroyd for the forthcoming third main-series Ghostbusters, which will be directed by Jason Reitman.