Is this a trend that we could continue to see? What's interesting is that these CBDs build up, meaning a plot of land that may traditionally support say 10 single family homes can support an apartment building home to 100s of families. Might we see a new category of "hyper-urban" communities significantly denser than really anything we're currently seeing?
It will remain pretty limited as "gentrification" and the supposed "return to cities" have been simply due to space constraints making this phenomenon applicable to only several hundred thousands or a few million people at most unless it extends to more neighbourhoods outside of the downtown core and perhaps more importantly is able to keep in middle class families not just recent college graduates and single professionals.