Will we ever know the true reason why Danny Boyle quit the gig of a lifetime of directing 'Bond 25'? New reports suggest that the ‘Slumdog Millionaire’ and ‘Trainspotting’ director quit because of plans to kill 007 and 'regenerate' him, akin to sci fi TV character ‘Doctor Who’.

The news that Boyle had quit the project first emerged last week and since then, a report from The Telegraph suggested that he quit because of casting clashes with its star, Daniel Craig, in relation to the actor Tomasz Kot.

‘Creative differences’ had been the reason given for Boyle’s departure in the initial statement, while others have speculated that he quit over his pay check (any director would expect a hefty one following reports of what Craig is said to be getting paid to reprise the role).

In this latest development, The Sun reports that the decision to kill and/or regenerate Bond was the idea of long-serving producer Barbara Broccoli, but Boyle hated and quit over it.

According to an insider: "There were discussions about killing off Bond in dramatic fashion at the end.

"It would also leave it open for a twist in the next instalment - either Bond hadn’t died or there could be a Doctor Who-esque regeneration with a new actor.

"There were clashes over budget and there’s pandemonium among crew with people leaving the production left, right and centre. There are fears the film will be put back months and backroom staff are worried about where their next pay cheque is coming from. "

A number of names are associated with taking Boyle’s place as director. These include David Mackenzie (who last directed ‘Hell or High Water’ and helms the upcoming Netflix movie ‘Outlaw King’), Matthew Vaughn (whose credits include Craig starrer ‘Layer Cake’, ‘Kick-Ass’ and the ‘Kingsman’ movies), Joe Wright (who last directed ‘Darkest Hour’) and Yann Demange (best known for directing Northern Irish thriller ‘’71’ and the upcoming ‘White Boy Rick’).