The reason why John Cena did not appear on this past Monday’s 11/3 WWE RAW in Buffalo was due to Cena being in Los Angeles according to a report by Mike Johnson. The belief is that Cena was in Los Angeles for film-related reasons as the film that Cena has a role in entitled “The Nest” is still in the process of filming in Los Angeles. Cena joined back up with the WWE talent roster at the Smackdown tapings in Albany, New York last night before they headed out to London, England to begin their UK tour. 

Source: PWInsider.com