For those of you who are confused by the Thursday, Sunday things. There are two different things happening on each day:
Thursday is the deadline for the review of the current lockdown, it has to be reviewed every three weeks. Boris will meet with Cobra, SAGE etc., and brief us on Thursday, about the lockdown. If he does what Sturgeon has just told Scotland (that it is highly likely that it will be extended for three weeks on Thursday) he will extend it.
Sunday is the day when he will announce the road map for phase 2. This is what an easing of restrictions will look like, for after the end of the lockdown. They call it the road map.
They have never said that the lockdown will end this Thursday, they have always said it will be reviewed.
Some MNetters decided that the easy of restrictions would start this Thursday, but that was never said by the Government, who have always said that easing will happen when it is safe to do so. One of the key tests is the track and trace, which will be up and running by the end of the month, and another is the R number. It has to remain low and preferably go down further, over a "sustained period of time" (Chris Whitty).
So another 3 weeks, but if enough people flout it, longer.
They won't undo any lockdown measures before a Bank Holiday weekend.