The curved buildings are still the main retail focal point of 29th Street. The Google Aerial is from October 2014, so pretty recent. There is a large "Texas Doughnut" building slated for the vacant lot adjacent the town square though.
http://denver-cityscape.com/images/StapletonTownCenter.jpg The image was a bit large, and has been posted here before, so just see the link instead. I'm not sure of the status on this one, but it was supposed to be starting soon. I'm not sure what's going in along MLK (I haven't been out there in over a year and am also judging by the Google aerial), but they are certainly bigger than single family homes. The 2-3 blocks south of the 29th Street Town center were originally built with 2-3 story duplex/triplex/condo buildings as well, and 29th street extending east into the neighborhood is lined with rather attractive townhouse units for many blocks, as will be MLK by the park. The vacant corner lots W/SW of Central Park, where the old control tower stands, are also slated for higher-density residential when the market allows. CONative is absolutely correct, most of the mixed-use sites still have not even been built on. There are quite a few more along Central Park Blvd in the southern portion of the development that can be seen on GoogleEarth. Not to mention the many other private parcels left over from the old airport (which can also be seen on the aerial photo) that may redevelop one day.
I think we're on the same page that something more urban may be possible today, or certainly will be in the future. But in the 1990s, it made sense to aim to be like Wash Park; not Cap Hill. Thank you to Ken for pointing out that this is what they meant by "urban" in their ads. It certainly is a lot more urban than something like Highlands Ranch, both in location and in design. Personally, I also believe that the parking lots behind the curved buildings at 29th Street, and some of those suburban pad sites along Quebec could one day be redevelopment sites as well. Changing attitudes over time, and changing real estate economics could render the suburban strip malls obsolete, especially if it remains a hot neighborhood.
Urban forms like what we see getting built in Lower Highland, or the mid-century apartments buildings in Cap Hill only make sense when there is something nearby that people actually want to be close to. In the 90s, after the airport closed, there was no "there" there; like I said before. Now there is! And I think we will start to see it fill in over time, just like everywhere else in town.