In terms of which of these might actually become products in the near(ish) future I'll say:
Canon RF 50mm f/1.8 - Obviously yes
Canon RF 80mm f/1.4 - Nope
Canon RF 85mm f/1.4 - Nope
Canon RF 85mm f/1.8 - More Nope
Canon RF 100mm f/2 - I'm going to say no
Canon RF 135mm f/2 - Maybe
Canon RF 300mm f/2.8 - Yes
I know some people want a 135mm f/1.8 or 1.4 but the EF 135 2.0 has always been a spectacular lens, and part of this is due to the relatively small size and low weight. Not sure I'd want a more expensive and heavier version.
How can you say Nope to an 85mm 1.4 or 1.8 (for canon the 1.2 will never be a hot of the shelves lens) they need smaller lighter version that cost half the price. You might not need it but the lineup does.