That would imply that you believe individual offices have been popular for centuries. I don't think that's true.Open workspaces have been popular for only like a decade. That’s seriously misguided to base such a huge project on a trend. That’s the issue with modernity in general. Look at any cities developed top-down by designers; they don’t work as well in practice. What people have been doing for centuries is likely the better choice, as outdated as it looks to modernist designers.
I think a reasonable argument could be made that individual offices are the real fad and open work spaces are how humanity has functioned for almost all of its existence.