The opening of leisure outlets from 4 July, which appears to be based on the latest Brownian motions of Boris Johnson's brain, opens potential for reopening libraries in some form. Although Peterborough's libraries have been returned to the Council, I can't see why the library sector is not subject to the same profit problem as commercial businesses, and would help generate footfall in town centres.
That said forthcoming budget cuts in local government threaten the service.
There is also the odd case of Wìllesden Library. Here the nature of the building is that the museum, art gallery and the business that rents there can only operate if the library is open.