Added May 03 2012
Apparently it's the end of the line for the Brand Brewery Complex - which abuts the Home Depot property on Elston (read more here: http://www.chicagoreader.com/Bleader/archives/2011/12/01/the-brand-brewing-complex-to-raze-or-not-to-raze)
From what I've been told, a demolition permit has been issued for the property and I received an email from salvage company "Urban Remains" that advertises they're working in the building. In fact, their website (urbanremainschicago.com) notes:
May 2012 salvage updates & other misc. debris
brand brewery complex salvage in progress
15 new items listed every day
It's a sad statement, given the success of the Printed String Building (Elston/Logan) that this historic and beautiful, if neglected building, couldn't be re-used.