Canon Rumors is reporting that Canon will announce two new RF-S lenses along with another L lens before the end of 2023.
It's predicted that one of the lenses will be an ultra-wide zoom for RF-S. I think we will also see a new RF-S prime lens, maybe something like the EF-M 32mm f/1.4.
What the next RF L lens will be is unknown, but according to multiple reports the RF 200-500mm f/4L IS USM is a likely candidate to be announced.