The play-off semi-finals and finals that are supposed to decide the last four qualifying berths for the next European Championship were initially postponed at the end of March and pencilled in provisionally for June.
However, UEFA have also stated a determination to finish all domestic and club competitions by 30 June.
Carrying the season on beyond 30 June runs the risk of clubs losing their out-of-contract players before matches have been completed, unless a solution can be found.
UEFA president Aleksander Ceferin told Italian daily at the weekend that football "could start again in mid-May, in June or even late June" but that any time after that and "the season will probably be lost."
According to the RFEF and the Danish Football Association, agreement has been reached for the women's Euro 2021, due to be hosted by England, to be played in 2022. The next men's under-21 Euro will also go ahead in 2022, they said.