The future of Kettering General Hospital will be discussed at a public consultation expected to start in late spring or early summer.
The Healthier Together programme is looking at services provided in hospitals in Bedford, Luton and Dunstable, Milton Keynes, Northampton and Kettering.
Members of the public will have an opportunity to have their say, but the public consultation which was expected to take place early in 2013 has been moved back to late spring at the earliest.
A spokesman for Healthier Together said discussions were still taking place with clinicians before the public consultation could begin. He added: “We also cannot carry out the consultation during the local election period later this year.”
Last year the Northamptonshire Telegraph broke the news that Kettering General Hospital could be at risk of losing more than 500 of its 658 beds.
The figures came from documents leaked to the paper by politicians concerned by the consequences of any possible changes.
At the time, Healthier Together said no decisions had been taken.