Actually, I thought it was just a proposal to link the airport with a foot bridge to the U.S., but it sounds like it is already under construction:
https://en.wikipedia.org/wiki/Cross_Border_Xpress http://www.sandiegouniontribune.com/news/2015/feb/16/skybrid...
https://en.wikipedia.org/wiki/Category:Artificial_island_air...
http://mysteryoftheiniquity.com/2011/03/20/denver-internatio...
Delusions are terrifying.
That demon horse scares the crap out of me, though.
We call him "Blucifer". He killed his creator (really -- a piece of the sculpture fell on the artist's leg and severed an artery.)
http://www.slate.com/blogs/atlas_obscura/2014/03/17/the_blue...
The big mistake was not connecting it to the city's light rail sooner.
I was a Delta Gold Medallion flyer for years (50k+ miles), and couple of times flirted with Platinum (75k+ miles). So...basically on a flight a couple of times a week, every week. There are large numbers of us. Denver is a pain in the ass.
Even if Denver doesn't grow to the airport, I don't see the downside of having an airport a few miles out of town.