At the margin there will be some of what you describe, and there already is (those little enclaves that look like mini-small towns surrounding a park and a few stores in the center of housing, like Prospect in Longmont). And of course the urban areas will continue to build upward and get more dense.  None of this is anything new, nor will it be it anywhere close to making a wide metro area like the Front Range dramatically different in terms of walkability and transit-capabability.  Again, that ship has already sailed.  

Yes, you'll see MARGINAL build-up around transit stations. Yes, you'll see SOME more min-enclaves.  But this pipe-dream about redesigning 150 square miles of metro Denver into something greatly different than it is is just that - a pipe dream.