OM System has just officially announced the new OM System M.Zuiko Digital ED 20mm F1.4 Pro lens. It is billed as a high-performing, fast and lightweight (247g / 8.7oz) prime lens for Micro Four Thirds. Here are some sample images taken with Olympus E-M5 Mark III, posted at Dpreview. Just take a look.
This new lens costs $799, first available for pre-order at B&H/ Adorama.