Having intimate knowledge of Canon's best cameras and lenses and its lens roadmap, there's further info that I can draw from the picture to speculate what these three mystery lenses could be.
Canon's newest, non-extending 70-200mm F2.8 L zoom for RF-mount includes features aimed at both photo and video shooters. It also works with Canon's RF-mount 1.4x and 2x teleconverters.
Canon has announced four new lenses for its mirrorless cameras, three of which are touted 'hybrid', meaning that they are designed for video and still creators. They are the RF 24mm F1.4L VCM ...