Well another year on and it doesn't look like much has changed. The satellite imagery shows no activity around the main building and it looks like the roof hasn't even been completed on a small part of the northeast section:
https://goo.gl/maps/u59XterfCKD2
I tried searching for anything concrete, but all I could find was something from January 7th in the Pinal Partnership where the CG mayor says that PhoenixMart is ‘still alive'.
http://pinalpartnership.com/casa-gra...rojects-works/
If it is alive, it's on life support at this point. I'm guessing it's never going to become what it was billed to be. Anyone know anything else??? ¯\_(ツ)_/¯