Ran into a Chevy dealer and was informed that there is a strong probability that the 6.2 with 8 speeds will be offered soon in the 2017 2500 series? I know this topic has been beaten to death before, ...
2017 vincard info suggests GM will have the same gas engine (L96 and LC8) in 2017 HD's. Not to say that the 6.2L won't be an option, as anything is possible.
The 6.0L is a tried and true motor and on paper doesn't impress but in several real world tests, has performed favorably compared to its competitors.