We're pretty certain this is a 1500 and not a heavy duty model judging from the grille and hood. That said, FCA clearly went to great lengths to hide the cab. It's still clear that the rear section is longer than your typical quad cab, leading us to believe that the Mega Cab option will return to the 1500 line.
Other interesting details are the covered tailgate and the Chrysler steering wheel in the interior. We're not entirely sure why it's covered up, as it doesn't appear to have a different function, but there could be some styling tweaks for a new trim level. The one part we can see is the tailgate handle, which may reveal some updated camera abilities as the normal location shows a differently shaped camera lens. There are also two small spots that could be cameras, but it's tough to say for sure. Will we see 360-degree imaging on the next Ram?
The steering wheel is an unusual inclusion as well. Our photographer suggests that it could be necessary for using the latest UConnect infotainment system. Other than the wheel though, the interior looks identical to the current model.
This updated cab option also leaves us wondering about the future of the Ram line. We have documentation that shows FCA plans to launch some type of refreshed Ram for the 2018 model year. So it's possible we're looking at an early test mule for that updated model, and the new cab option could be launched at the same time. In many ways, this Ram brings up more questions than answers.