The Cityplace phenomenon - a masterplanned, middle-class community of look-alike housing with full amenities and a dedicated service centre - actually sounds like a pretty old phenomenon. Although concrete examples escape my mind right now, I don't know how many times I've read an urban history book about some prewar complex in the United States where the historians recall that a glorious collection of garden apartments that have now falled on hard times once boasted their own private gardens, bowling alleys, streetcar stop or Turkish bath.
It's hard to predict how culture will evolve over the next century, but if I had to hazard a guess, I would imagine that in 70 years from now, Cityplace will have been integrated into the urban fabric - some of the buildings will have been demolished and replaced with other stuff and others will be radically reconfigured both inside and out, making them appear unrecognizable. I'll guess that the condo corporation will cease to exist in its present form, the parent company having long moved on, either due to folding, merging with another company, or maybe housing development will just not be such an important component of the late 21st century economy as it once was. The amenities complex will probably be recycled into some other use: stores, offices, more housing, who knows? I'm pretty sure that over time the unified look, and the complex's distinctness from the rest of the surrounding city - both architecturally and socio-demographically- will gradually disappear, and it will be just another neighbourhood with some unique history.