I'm all for diesel... its in my user name!
I don't care what the anti-diesel crowd has said in this post, diesel engines are a viable option for the future of America. New diesels are more powerful then they have ever been before. Furthermore, they are clean and the emission systems are rapidly changing to make the system overall more efficient. The torque, the mileage, and the longevity are all pros of a diesel engine. However on the other hand, the weight, the cost, and the platforms these vehicles can fit in are certainly the cons of a diesel platform at this time.
Now with that being said, the 2016 emission standards are going to push the modern automobile into its next phase. All types of engines produced today are going to need to be reinvented or scraped. Diesels put out far less pollutants across the board, minus nitrogen oxide emissions. What is even better is that they can run on biodiesel! You can make biodiesel from numerous food and non-food based sources. From waste veggie oil, to soybeans, and the rapeseed plant. Biodiesel can be made today,tomorrow, and the next day after that... all from renewable resources! Not to mention the future of most second generation fuels will certainly come online within the next decade.
Jeeps are durable vehicles and I'm sure fiat has wranglers equipped with diesels already in them. VM Motori motors (think Jeep Liberty CRD diesel motor company) currently power the European 2011 Grand Cherokee. There is only a matter of time before the vehicles we build in America (sent over with diesels engines) are simply sold in America.
Time will tell but I know it will happen, lets just wait and see. In the meantime, pick up diesel power magazine. There is always articles regarding future diesel motors in American vehicles.