Leica SL has a Leica T lens mount and currently there are 5 native lenses available for this mount.
Leica SL doesn't have a sensor based image stabilization system but 2 of these lenses already comes with optical image stabilization.
Since Leica SL has a Full frame sensor, it has a focal length multiplier of 1× so lenses will provide their original focal length on SL.
You may also also be interested in these:
Leica SL Lenses with Image Stabilization
Leica SL Lenses with Weather Sealings