Although this is too early to say, but I hope they'll make the 6th gear a really tall overdrive (like the .50 ratio of the f-bodies). The ratio should be atleast 30mph / 1000 rpm. Our current cruising rpm is way too high to achieve good mileage.

I would also hope that Nissan has upgraded the load capacity. I have heard that the current gen is officially rated at only 850 lbs, (although it could easily handle more), which is a bit low for a truck with a frame.

And as others have noted, the ground clearance seems a bit low. The ABSOLUTE LOWEST POINT might be higher, giving it a higer gc rating, but the overall clearance has gone down, just like many other new SUVs (Durango for example).