Job share

50% reduction in staff coming soon in my job, It has been suggested that
job sharing may be a solution to letting people go until more work returns
as planned next year. My question is if no new work returns next year can and will the company offer redundacies based on the job share half hours/pay scenario or on normal pay. Is there any way of ensuring or safeguarding that redundancy would not be based on job sharinf half hours. ?

i think if you were made redundant the payment is calculated on the previous years p60, so you'd need to be careful if you were laid off next yr it would be calculated on this years p60