If they had hired me to design their lens lineup, I wouldn't have had an 35/1.2. I'd have had a professional-spec 35/1.4, and a halo/fine art 35/1.0.
My concept for lens lineups would have been:
Halo: priority is spec only. Get camera nerds everywhere wishing they were shooting Canon. Specs that look like misprints. Lenses might be in fact rental-only or by-invitation-only but at least exist in theory. 35/1.0, 50/0.7 (like Kubrick had in the 1970s, not impossible at all), 135/1.0DS. Could also be TS lenses, the old fisheye zoom or 1200/5.6 or even 200/1.8. The current 28-70/2.0 also fits this line, as do the DS lenses.
Pro: priority is durability, image quality, then spec. the lenses most pros would shoot with most of the time. 50/1.2 or a 50/1.4 totally redesigned to be far sharper, even if it's bigger and more expensive. The full range of f/2.8 and f/4 trinity lenses.
Street: priority is durability, image quality, portability. Spec may be moderate. Something to tempt the Leica shooters. Like current 50/1.8 but higher quality; target would be Leica APO ASPH 50/2.
Amateur: priorities are interesting features and price. It might be 28-200mm zoom, or have IS and 0.5x macro, and other interesting doodads. This could be like the EF 50/1.4: relatively exciting f-stop for a very low price.
So in summary we might have a huge fragile 50/0.7, a sturdy and sharp 50/1.2 or 50/1.4, a cheap and cheerful 50/1.4, and a super-high IQ 50/1.8 or 50/2.
Back to 35mm, we'd have a 35/1.0 the price of a car, a 35/1.4 for pros, the 35/1.8 for amateurs, then a 35/2.0 designed with perfect bokeh and super sharpness.