According to NR, the announcements of new Nikon for the PMA will be very limited: “several large aperture prime lenses and light compact zoom lens this year”.
The official PMA press conferences will happen in the coming hours, but this probably means “no SLR“.
Updated on 9-Feb: As a matter of fact, the Nikon press conference only presents the new AF-S NIKKOR 24mm f/1.4G ED & AF-S NIKKOR 16-35mm f/4G ED VR (source: DPReview).