Fairfax Media has flagged an end to weekday print editions of The Sydney Morning Herald and The Age in the face of falling advertising revenue.
Chief executive Greg Hywood said the masthead newspapers - which have been in print since 1831 and 1854 respectively - could become weekend-only, as those editions generate the majority of their advertising revenue.
The Australian Financial Review may go the opposite way and drop its weekend edition.
Fairfax has come up with the potential new publishing models in the face of tumbling revenue, which has already led to widespread job losses.
"In the case of the SMH and The Age, the newspapers could potentially offer a differentiated consumer experience designed for the weekend," Mr Hywood said in a speech to the Macquarie Australia Conference.