I doubt it for the same reason they aren't bringing the 170hp TDI engine - emissions, the cost of certifying the engine, and the need to go to a wet urea system if you put that engine into a significantly heavier car.
It would make sense to bring the 170hp engine and put it into the Audi A3, a Golf GTD, and Passat TDI. Make those cars something special above the Jetta/Golf TDI. Although the Audi A4 would need modification to be a longitudinal engine instead of the transverse engines in the above cars, that also opens up the possibility of a 4 cylinder Audi A4 TDI or Audi TT TDI.
However, that makes too much sense and they probably don't think they can make the numbers work.