The release date of the next James Bond film is widely expected to be put back following Danny Boyles abrupt decision to exit the currently untitled project.
Bond 25 is scheduled to arrive in UK cinemas on 25 October 2019 and open in US cinemas two weeks later.
But the film may not now be released until late 2020, according to the Hollywood Reporters unnamed sources.
The Oscar-winning directors shock departure earlier this week was attributed to creative differences.
According to The Telegraph, those may have included Boyles purported wish to cast Polish actor Tomasz Kot as the films main Russian villain.
Kot, 41, can currently be seen in Pawel Pawlikowskis film Cold War, which had its premiere at this years Cannes Film Festival.
The Telegraph also claimed the films producers had concerns over the scripts focus on current political tensions with Russia.
A spokeswoman for Trainspotting screenwriter John Hodge, author of the script in question, confirmed this week that he was also no longer involved.
MGM and Eon, who produce the Bond films, declined to comment.
Filming had been due to start in December at Pinewood Studios in Buckinghamshire, with Daniel Craig reprising his role as Ian Flemings iconic spy.
David Mackenzie, Yann Demange and Joe Wright are among the film-makers who have been tipped to take over the directors chair.
With the exact reasons for Boyles departure still unclear, people previously involved in the Bond films are being asked for their thoughts on the situation.
These include actor Jonathan Pryce, who is quoted in the Daily Mail as saying that the producers parted company with Boyle because they obviously couldnt take a socialist Bond.
There are the Dannys of this world and then there are people who do the blockbusters, continued Pryce, who played the villainous Elliot Carver in 1997s Tomorrow Never Dies.
Boyle has never concealed his left-leaning sympathies, though he declined to identify himself as a socialist in a 2013 interview.
His opening ceremony for the 2012 London Olympics featured a Bond-based short and a set-piece tribute to the National Health Service.
BBC