This is about a month old, but it's the most recent news I could find on the Cruze Diesel. The last line of the article (at end of quote, below) is interesting:
Message Posted: Mar 19, 2012 8:35:45 AM
"...For 2013, Chevrolet will add a diesel powertrain to its already-popular Chevy Cruze compact sedan.
Today we confirmed with GM Powertrain spokesman Tom Read that the diesel engine will have a 2.0-liter displacement and be turbocharged. In Europe, the Cruze already has a turbocharged 2.0-liter VCDi diesel inline-four that makes 161 horsepower and 266 pounds-feet of torque. This could very well be the engine that ends up in the U.S. model, but with some modifications...
...GM hasn't publicly commented on whether the diesel will eke out better fuel-efficiency figures than the Cruze Eco, which gets 42 mpg on the highway"
Link to full story from Chicago Tribune
[Edited by: Eugene_C at 3/19/2012 11:36:08 AM EST]