Image on top shows the 24mm GM aperture ring
Two sources told me this about the new Sony 20mm f/1.8 G FE lens:
same design quality of the 16-55 f/2.8 . And like the 24mm Gmaster it has an aperture ring and switch for fluid aperture for filmmaker
I guess that having 16-55mm cues means that it has a MF-AF switch and a customizable button too.