While Nikon has had a mirrorless offering for several years now, most photography professionals have shied away from the system due to its small sensor size (and corresponding limitations), as well as incompatibility with their current lens lineup from the DSLR side.
However, in a July 2017 inverview featured in Yahoo! Japan, Nikon President Kazuo Ushida revealed the company’s intentions to create a “serious” mirrorless system to take on competition from the likes of Sony, which has a solid head start in the APS-C and full-frame mirrorless market.
According to Ushida:
The exact details of Nikon’s upcoming mirrorless system remain to be seen, but recent indications point to a full-frame sensor and compatibility with existing lenses. We remain hopeful that this is the case.