According to recently rumors on CR, in early 2020, three new RF lenses is expected to be announced, around CP+ 2020 in February. These three lenses are RF 24mm f/1.4L USM Lens, RF 135mm f/1.8L USM Lens, a new “first of its kind macro lens”.
The RF 24mm f/1.4L USM lens will be the first fast wide-angle prime lens for RF mount.
The RF 135mm f/1.8L USM lens is another fast telephoto prime lens already rumored before, you can take a look the patent of this lens.
The new macro RF lens will be “first of its kind macro lens”.
According to rumors, Canon is also working on two more fast prime lenses: RF 14mm fast prime lens and RF 35mm f/1.4L USM lens. There will be a total of 8 new RF lenses coming in 2020 as rumored before.