This is all still speculative, but it did make it into Automotive News. Apparently Alfa Romeo is developing a 2.2 L Turbo Diesel which may be used on North American CUSW platform cars, such as the Chrysler 200 and the Jeep Cherokee.
http://www.autonews.com/article/201.../150209922/does-fca-have-a-new-small-turbodiesel-coming-to-the-states-why-its-a
http://www.autonews.com/article/201.../150209922/does-fca-have-a-new-small-turbodiesel-coming-to-the-states-why-its-a