Strong words from @london.gov.uk here - directly linking the violence in Belfast to normalisation of violence in political rhetoric, including online.
Some of the higher spec student housing would probably convert ok to the 'co-living' sector - small studio flatlets let to young professionals. But I suspect the student housing that's most likely to be hard to let will be the tiny bedrooms that don't work as permanent housing for any other group.
With demographic change, concerns about the value of going to university and tighter rules for foreign students, I suspect we'll see more of these applications to convert student housing to other uses.