Sony is allegedly working on a new 16mm f/1.4 APS-C E-mount lens, which is expected to be announced soon. This Sony 16mm f/1.4 lens is designed for Sony APS-C E-mount mirrorless cameras, not for full frame cameras.
This Sony 16mm f/1.4 lens will probably have the similar shape as the current 55mm f/1.8 lens, but a little longer. Fujifilm already has the XF 16mm f/1.4 R WR lens ($999). Maybe Sony is finally taking Fuji seriously.
Stay tuned for more info.