Canon is rumored to be working on a new affordable RF 85mm f/2 IS STM lens. This new 85mm prime is expected to be announced in 2020.
In addition, Canon is planning to a whole line of f/2-f/2.8 non-L prime lenses with IS in the next 12 months. And these prime lenses will range from 18mm to 85mm.
Canon currently has two 85mm RF lenses for Canon EOS R and EOS RP mirrorless cameras: RF 85mm f/1.2L USM Lens ($2,699) and RF 85mm f/1.2L USM DS “Defocus Smoothing” lens ($2,999).
This is the first time we’ve heard such a RF 85mm f/2 IS STM lens coming. So just take it with a grain of salt until we can confirm the information above.