There's not a chance of that in the UK. The whole point of the lock down is to flatten the curve to allow essential services to cope and not to exceed capacity. It largely means the same number of people are likely to be infected but over a longer period. This can only be about buying time until a vaccine or treatments are developed, or failing that (this not being guaranteed) keeping the spread controlled until herd immunity is achieved. The government don't want to admit it but there you go.
The country can't afford people to be in lockdown for months and years on end. A recession takes years off life expectancy and a failed economy could kill more than the virus.
Its a very uncomfortable truth but the virus largely kills elderly people who cannot contribute to the economy and who often (due to underlying health conditions) do not have a long time to live. That is tragic, as is every life lost but there is a balance we need to keep. A long term lock down to save those people, whilst risking the ability for the people working now who fund the economy (and often care for those vulnerable groups), and ruining the future of the very young who are the people who will fund the country when the current crop retire is unthinkable.
Antibody testing is ongoing and if that indicates that there is an "iceberg" of people who have already had the virus (and the studies so far indicate that) and if, as suggested the actual risk of death overall is less than 0.1% (or less again for younger people) the economic damage will at some stage outweigh the damage the virus causes. People run the risk of death everyday from all kinds of threats, yet we do not lockdown because of it. How many die of Malaria, or Flu across the world every year? How may die in car accidents?
I think social distancing will remain in some form for a while but even that will have a shelf life. Some people you read online seem to think the world will be forever changed and I think some things (i.e. the way we work and the use of technology to minimise unnecessary travel) will, but socialising won't. Its innately human for people to want to socialise and that's why places we can do that exist. Things may change over time (i.e. local pubs closing and being replaced by a Nando's or similar as a place where young people meet) but the principle remains the same. People will not put up with months and months of having to work but then not "let off steam" as they usually would by meeting friends at the end of the week, or going to a cinema, concert or sports event. People are already getting sick of this so what'll happen in three months? Compliance cannot possibly be policed and eventually, the tide will turn against the Government because people will want a return to normality. As an example a 70+ year old friend of my parents, having been self-isolating for weeks has said that he'd rather take his chances and enjoy what years he has left than be locked up every day because he isn't living a life. If that was me I'd feel the same given that at some point in the next few years some disease or ailment is going to do for me anyway.
As an aside, the media have a lot to answer for. They've seemingly convinced a generation of young, healthy people that they're going to die of they go to Tesco to pick up some shopping. Evidently this is very serious but accurate reporting around risk should be made clear, rather than prioritising getting clicks online with sensational articles filled with doom and gloom about how we'll never return to normal. Printing daily deaths is, I suppose required but the human brain is not wired up to deal with that much death, even though around 1600 people a day die on average in the UK.