The new diesel is built by Motori. It is owned jointly by Fiat & GM. GM is using this diesel in Europe. Motori was once owned by Detroit Diesel.
It is much more powerful than the MB diesel that Dodge used.
As for Ford using a diesel I would bet they won't, because they have bet the farm on the Eco-Boost engines. A small diesel would run competition with the EB. Competing with yourself isn't a real smart business move.
Dodge has been on the move since it first introduced the NEW RAM in 1994 I own a 99 Dodge 2500 4x4 QC V-10 5 speed, I love it. It has been one of the cheapest big truck to own I have ever owned. I have to say I owned a couple of Ford Ranger 4x4 in the early 90s that were excellent trucks with very little cost to own.
Craig