Sigma just patented two new Micro Four Thirds lenses: 14mm f/1.2 and 35mm f/1.2. Now you will wonder…what has this to do with Panasonic? Because Sigma is known to sell those lens designs to Panasonic. The Leica 12mm f/1.4 for example is designed by Sigma (article here).
That’s why there is a high chance the 14mm and 35mm f/1.2 prime lenses will be released by Panasonic (maybe using Leica brand).