Curbed Chicago has a very interesting post about a proposed high rise just North of Congress:
More university housing could be in the cards for the South Loop. Spyguy, Skyscraper Page's resident super-sleuth, has managed to score a rendering of the latest proposal. The rental tower was designed by Lothan Van Hook DeStefano Architecture LLC and is intended to serve students, faculty, and staff in the area. Its avant-garde design, quite a departure from Chicago's recent crop of buildings, consists of a series of stacked black cubes, each one precariously cantilevered over the one below.
While we're not 100% sure about the location, it looks like it would be on the Southwest corner of Wabash and Van Buren.
Not sure if this will happen, but it definitely would be one of the more interesting buildings to go up in Chicago.
(Image from SpyGuy!)