I take issue with the "people have been doing the same thing for years" take, when most hugely successful start-ups tend to be small tweaks on established ideas. Take AirBnB. Peer-to-peer short term rentals existed on the Internet in the form of sites like VRBO since the late 90s, but AirBnB's relatively small changes (mainly ensuring that the financial transaction occurred completely on their platform) allowed for the sea change of urban short term rentals.

While I'm bearish on WeWork for the same reasons as many other people, I think there is certainly room for a consolidated business of month-to-month office rentals that offers a branded experience.