Rockstar is currently developing a new 85mm f/1.8 pancake full-frame lens for Sony E-mount (via SonyAddict).
Update: Rockstar will actually release two different lenses: a 35mm pancake and a 85mm f/1.8 autofocus lens for Sony FE
Rockstar is also rumored to announce a new lens for Leica M-mount:
Rockstar lenses are sold on eBay.
