Depends what one is trying to accomplish with 35mm. It's not hard to imagine scenarios in which the advantages offered by a particular new lens should be visible and useful.
But in my own practice, 35mm film is for working quick-and-easy. When I want to push the envelope on technical quality, I use larger formats rather than trying to impose meticulous shot discipline on 35mm. Also, I'm not currently perceiving any problems in my 35mm work that would be solved by a new, cutting edge lens. So I don't feel much urge to spend the $$$$ to replace my existing lenses for 35mm with the latest and greatest; my photography budget is better spent elsewhere.
Now that I think about it, the only digital-era lens that I've used on 35mm film is the EF 40/2.8 pancake that I bought for my EOS 6D. I've used it on a 1V with film, too; it's a nice lens, all around. But that lens is as affordable as they come, and the reason I bought it was the combination of focal length, size and value for money, not a search for cutting-edge optical performance.