what do you think should happen?
Now? I think we are screwed I matter what. The opportunity to prevent major loss of life and the economy has long gone. From where we are now I think the government should hold their nerve, keep us in lockdown until the beginning of June and then let schools re open - that gives six weeks or so until the summer holidays to watch and see what happens with infection rates.
As for businesses, I think it's very difficult. I can't see how large department stores or shopping centres can open and still maintain social distancing, don't see how restaurants, ants, pubs, clubs, theatres, hotels can open for the same reason. Maybe small businesses where social distancing can be maintained and adhered to could open but ten you would have to consider the effects of the infrastructure needed to support those businesses.
Public transport, particularly in London, will be impossible to keep safe.
Then you will have effectively a two tier system so people able to get back to work but vast swathes not able to go back, which will in turn affect income available to spend in open businesses.
I honestly cannot see any way out of lockdown before they have, as a minimum, reliable testing, tracking and tracing in place. The tracking will have to be mandatory too because you will have to ensure that everyone is using it or the tracing just falls at the first hurdle. Will the population accept these restrictions on their freedom?