You clearly are using the old 50mm 1.2 in a way that works around the significant focusing and sharpness problems. Good for you! I like using 50mm closer than six feet, and I like to be able to stop down fractions of a stop from wide open. Also, focusing speed at events makes it second choice to even the clunky little 50mm f/1.4. Not in my kit.
When the true RF successor to the 5DIV comes out, with some of the current EOS R's shortcomings addressed, I'll get one and the new 50mm 1.2. On the other hand, if Canon surprises its EF customers with a working version of the 1.2, why should I be in a hurry to go with RF? Hmmm?
R&D for EF is officially in the rear viewer. Sure, a few more updates might dribble out to make older favorites work better on EF; otherwise, Canon is done with EF lens development. If an EF body is in the pipeline ready for release, yawn, why bother with it?
But this kind of talk scares the fish who want to swim in the EF tank forever more. Don't tap the glass!