Nikon manager Mr. Goto stated in an interview with Xitek that their 2018 mirrorless system camera will use a Full Frame sensor. It will also target professional photographers.

So far we only saw patents for Full Frame lenses designed for the new 2018 mirrorless system camera. But it looks like Nikon engeneers are still considering the launch of an APS-C system camera. Today HiLowsNote spotted two brand new Nikon patents describing a 24mm f/1.8 lens that comes in two versions:

Patent 2017-161847 shows the design of a Full Frame 24mm f/1.8 lens
Patent 2017-161844 shows the design of an APS-C 24mm f/1.8 lens

I am pretty sure only one will become reality 🙂