I posted this on curbed already, but I think it would be interesting to see the new building potentially reflect an older style to compliment the Tribune Tower. The Tribune Tower’s design is the result of a competition they had back in the day. Perhaps they can draw inspiration from some of the other design submissions which several were similar in nature to the current design, with art deco and gothic influences.
http://skyscraper.org/EXHIBITIONS/PA.../chitrib01.php