Walked by 1136 S Wabash tonight and noticed signage on the scaffolding with a name for the building (Eleven40) and a website. Looks like the address is going to be 1140 S Wabash.
http://live1140.com/
There is a slideshow on the website with a bunch of renderings. A lot of them we have probably already seen but I think there's some new ones showing the rooftop.