According to the rumors from LR, Leica is currently testing several new Noctilux lens designs and will announce a new version by the end of the year 2015.
Some of the possibilities are:
- 50mm f/0.95 ( an update version of the current 50mm F/0.95)
- 35mm f/0.95
- 35mm f/0.70 (unlikely to go in to production)
Up to now, there are four lenses available for the Leica T mount.
Source: LR