Japanese manufacturer Cosina, makers of the Voigtlander lenses has officially teased their first RF mount lens. The new lens is teased with “electrical” contacts which would help with EXIF data, but do not expect an autofocus lens.
I would expect a well made prime lens from Cosina for the RF mount. It will be well built, and optically excellent for an affordable price.
We'll see the announcement this week.
Saw a comparison between the M mount version against the Leica equivalent and the Voigtländer matched it optically despite being $8000 cheaper.