The Prime Minister only speaks for England, as health is devolved to Scotland, Wales and Northern Ireland.
Here are the things we've already been told to expect from the Prime Minister:
A New Slogan
A Covid Alert System
, the number of infections and the amount of social interaction. It may in time be used to respond differently in different places. Boris Johnson is expected to say that we are currently at Level Four but moving down towards Three.
These will be allowed to reopen from Wednesday.
Quarantine for Travellers
Anyone arriving in the UK is expected to be asked to self isolate for 14 days, unless they are a key worker or coming from Ireland (which already has this system).
Here are the things we will be looking out for:
Will any of them reopen? If so how and when? Unless they do it will be difficult to start the economy moving again. The Observer says roads around schools will be closed at drop off and pick up times to allow for social distancing.
The Welsh Government has dropped the 'once a day' restriction and - at the time of writing - the Scottish are thinking about it. It wouldn't be surprising if England did the same.
Libraries and other public amenities
Again the Welsh Government have started planning for some reopening, but the Scottish and Northern Irish have not.
The Prime Minister has said in the past that face masks may play a role on the way out of lock down.
Coronavirus: Everything you need to know