The next lens Leica will announce will be the Leica APO-Summicron-SL 28mm f/2 ASPH – the lens has been on the roadmap for a while. The new 28 will be the 6th prime Leica SL lens:
Here is the full Leica SL lens lineup (click for larger view):
The price of the new Leica APO-Summicron-SL 28mm f/2 ASPH lens will be $5,195