Nikon’s history with mirrorless hasn’t been all that great. The Nikon 1 was a good idea, but badly executed. They weren’t very popular in either the low or high end markets, which is why they’re killing them off. Overall they have been largely disappointing when compared to the competition. Nikon’s President recently confirmed that a completely new Nikon mirrorless system is in the works.
A recent interview with Nikon R&D General Manager, Tetsuro Goto suggests that any new mirrorless camera coming from Nikon “must be full frame”. If true, this would be very cool. Nikon Rumors published a translation of the interview, Overall, it looks rather promising for the future of Nikon mirrorless.