Update: The name of this lens is Sony FE 20mm f/1.8 G Lens (SEL20F18G).
According to Nokishita Camera, Germany website has leaked the upcoming Sony wide-angle prime FE lens: Sony FE 20mm f/1.8 Lens (SEL20F18F). The official announcement is expected in next few days. Stay tuned.
The lens hood for this lens is Sony ALC-SH162.