A reader spotted the above table at the Nikkor Z brochure that mentions “other” non-S mirrorless Z lenses described as “optimum balance between advanced functionality, compactness and value for money”:
Other Lenses
Lenses other than the S-Line series will be announced at a later date.
Well-balanced, high-performance lenses
These lenses strike an optimum balance between advanced functionality, compactness and value for money, while retaining the basic concept of the S-Line series.
All lenses on the current Nikon Z roadmap are “S-Line”. There have been several reports about Nikon releasing new “consumer” mirrorless cameras below the Z6.
Thanks Cameron!