Canon EF L lenses you will never see an RF version of.

Name Canon EF L lenses (and only L lenses) that were still in production in 2018 that you will never see an RF version of.

My choice: I don't think you will ever see a 14mm prime L lens like the 14mm 2.8 L II. Too much of a specialized lens with low volume sales and the introduction of Ultra Wide L lenses put this lens off to Pasteur.