The Ram 2500 HD models will have coil springs on the rear axle for 2014. The switch away from leaf springs was done to improve ride quality. Since the Power Wagon is based on the 2500 chassis, I think this means coils for the PW, too. Airbag suspension, the Cummins 6.7L diesel, and the 6.4L gas V8 are options on the 2500. The 5.7L standard and 6.4L optional gas engines get 6 speed automatics. The diesel has 6 speed manual and 6 speed auto trans options.
Fear not: The 3500 and Commercial 4500 and 5500 will continue to have their rear axles riding on leaf springs.
Fear not: The 3500 and Commercial 4500 and 5500 will continue to have their rear axles riding on leaf springs.