What to do with all this space?

As the revolution (or decimation) continues in the retail sector, those bricks and mortar retailers have a further conundrum; what to do with surplus space? 

High street stalwart, John Lewis, clearly believes it has too much space as it obtains a planning permission to convert almost half of its flagship store on Oxford Street to offices.  Of course, in the era of covid-19, what will the demand be like for office space in the West End?  Traditionally, the West End has suffered from a lack of supply of offices but will this be the case in a post pandemic world? The upheaval in the commercial property world has some way to go yet.