After two years of development the first three Digital Bolex C-mount lenses have been announced. These can work with adapter on MFT cameras too as stated on their website:
The Kish Optics/Digital Bolex Series 1 Super16mm Primes are fixed aperture F4 lenses fine-tuned to the optical sweet spot of each lens. C-mounted for native use with the Digital Bolex D16 camera, these lenses will cover sensors from 16mm to M43, and can be used on traditional C-mount 16mm motion picture cameras.
Full specs and few image samples can be seen here: http://www.digitalbolex.com/product-category/optics/lenses/
found via Mirrorlessrumors.com.