According to previous rumors, Canon may announce a new RF 14-21mm f/1.4L USM lens and a “crazy” prime lens in 2020 or later. Now according to CR, this “crazy” prime lens could be RF 135mm f/1.4L USM lens, along with RF 135mm f/1.8L USM lens in development. The release date for this lens is in later 2020.
One source said that this lens was shown in a roadmap presentation, but currently no speed info. Stay tuned.