It's a step towards the 2019's that will be at least 1,000TQ and around 425HP. This will be obtained thru a completely different emissions system that will be under the truck leaving the engine to use all the power available.
BTW that is the same ol POS IMHO Chinese Made Curt hitch.
30K 5er tripple axle at 15-20 percent pin would be 4,500-6,000#. I already run 6K pin towing 23K.