Thousands of parents, teachers and governors in Kent have been consulted on introducing the six-term year in the county's 622 schools from next September.
Despite reports that the consultation will show overwhelming support for the change, Kent said the result - due to be released in two weeks - is not a foregone conclusion.
'We have had a consultation and analysed the results, but the report is still being drawn up,' said a Kent CC spokesman.
Nothing would be taken forward until talks were held with Kent's five neighbouring councils, she said.
'If you take a family with four children, all in different schools, and the holidays don't coincide, you've got a problem. We may not go ahead with it, or decide we need longer to decide.'
Graham Badman, Kent's strategic director of education and libraries, said the six-term year could lower stress among staff and pupils.
'It would help us to improve things like curriculum planning,' he said.