I don't see them closing anything, nor least because Westminster won't be so there will be no money.
The vaccines are by and large are doing the job of keeping people out of hospital, the booster certainly will. The initial resistance to the infection wanes with time but the t cell response that should stop people from becoming really unwell lasts far longer.
It's nearly 2 years on, there's no way we could continue to shut ourselves away. We have to have a plan other than firefighting every time a new variant pops up, which they will continually. There are many many things that demand funding, time and energy, many of which have been badly neglected.