If office values fall 40% or more (which is likely for buildings in lesser locations), there this “arrow in the quiver” won’t be available for mixed-use development. With the internet now accounting for 30% of non-food and non-automotive retail sales, stores and restaurants are also harder to develop.
For revitalization strategy, that leaves housing and hospitality, which together only work in lifestyle locations. The solution to too much office space? Make every location “lifestyle”, so that people will want to be there regardless of the time or day.