Britain's Prime Minister Boris Johnson, under pressure because of the economic impact of the outbreak, was due to announce how rules will be relaxed for Christmas to allow family gatherings.
Some British media said transport secretary Grant Shapps was set to go into details on ending blanket quarantine restrictions in time for Christmas so families can travel to high-risk "red list" countries to visit relatives.
The restrictions are expected be slashed to five days - from the current 14 - if holidaymakers test negative five days after returning to the country. The new regime is expected to start on December 15 or 16.
Britain will also seek to start administering a vaccine before Christmas, with the bulk of the rollout at the start of the new year. Health minister Matt Hancock said life will get back to normal after Easter.
"We hope to be able to start vaccinating next month," Hancock said.
"The bulk of the vaccine rollout program will be in January, February, March. And we hope that sometime after Easter things will be able to start to get back to normal."
He said Britain has "100 million doses on order and should all that go well, the bulk of the rollout will be in the new year."