There has been speculation that he would resign once work advising the government on reorganisation finishes in January.
'I intend to stay on,' he told LGC. 'No doubt some things will need to be looked at again, and someone will have to monitor the performance of these authorities.'
Because of Sir John's scepticism about unitaries, his decision to stay will make it even harder for ministers to abolish counties. The contracts of most commissioners, except for Sir Kenneth Couzens and Christopher Chope, will end next June.