Thom Hogan

Nikon's currently published road map for Z lenses:

• 18-140mm DX zoom (before end of 2021)
• 24-105mm S-Line zoom (before end of 2021)
• 28mm compact lens (before end of 2021)
• 40mm compact lens (before end of 2021)
• 50mm Micro-Nikkor (before end of 2021) Originally listed as 60mm by Nikon
• 85mm f/1.2 S-Line
• 100-400mm S-line zoom (before end of 2021)
• 105mm Micro-Nikkor (before end of 2021)
• 200-600mm zoom (before end of 2021)
• 400mm S-Line 
• 600mm S-Line

So, is this enough? No. Particularly missing in Nikon's Road Map are:

1. Completion of the f/4 zoom cycle (missing 70-200mm)
2. Telephotos that aren't zooms (e.g. 105mm or 135mm prime, any exotic)
3. Complete fast prime set (e.g. f/1.2 or better in 35mm, 85mm)
4. Additional compact lenses (collapsing zooms, small primes)
5. Any PF lens (Nikon made this a specialty and they're popular, but no Z versions)
6. Any tilt-shift lens