I’m confident this has been improved, but with Nikon not doing much to quantify it, I suspect the gains are smaller than I’d like to see. Every little bit is welcome. Improved dynamic range may help me reduce shadow noise and motion alignment issues from blending multiple exposures (though I’ll still be blending, which I routinely do with single RAW files). If this beats expectations, it would immediately jump up on my list of reasons to buy.
Best Regards