The Nikon Z7 II and the Nikon Z6 II are going to be released this year. They didn't change a whole lot from the previous versions.
Nikon Z6 II and Z7 II - Better Than Ever!
Nikon Z6 II and Z7 II: what you need to know: Digital Photography Review
Full review: The 2018 Nikon Z7 and Z 24-70/4 – Ming Thein
Nikon Z6 II and Z7 II: Should you buy one?: Digital Photography Review
Full review: The 2018 Nikon Z7 and Z 24-70/4 – Ming Thein
Sadly, The Nikon Z6 II and Nikon Z7 II Aren't Innovative
An Essay Only Nikon Shooters Will Appreciate
Nikon Announces the Z6 II and Z7 II: The Next Generation of Mirrorless
Nikon N-Log 3D LUT Version 1.00 for Z6 and Z7 released - Nikon Rumors
Comparison of the mirrorless flagships: Nikon Z7 vs Sony a7R III: DPReview : r/photography
Nikon Z7 II Review & Sample Images by Ken Rockwell
Sadly, The Nikon Z6 II and Nikon Z7 II Aren't Innovative
Nikon ZFc Review: A Beautiful Disappointment of a Camera
Equipment Review: Nikon Z7 » Michael Clark Photography