They’ll want to ease restrictions one by one, to ‘see how it goes’ and measure the impact on virus rates.
If the return of schools and higher education is the first easing - and it should be, because young people are bearing the brunt of this, and university students are currently paying £3k per term for a correspondence course - then that’s the late February easing.
Measuring impact requires at least three weeks as each easing beds down, which points to non-essential retail returning in mid-March, possibly grouped with personal care and the end of ‘Stay At Home’. Hospitality would follow in early April (Easter, or maybe after Easter, deliberately) on a restricted basis such as ‘meals only’ or the rule of six; and gyms, swimming pools etc would probably return at the same time.
This timeline pushes spectator sport; festivals and pub boozing etc back to very late spring. Nightclubs would stay shut until about 2027....
Looking at the much better virus data today - whilst accepting that hospitals are still in desperate difficulty because of the usual lags - then I can’t see the ‘baby steps’ release programme through until June being tolerated, or economically viable. Once the over-70s are jabbed and hospital bed occupancy is on a solid downwards trajectory, the bullet will need to be bitten and most of the restrictions lifted quickly.