Converting 100% of production commences a transition. If 95% of Audi cars are scrapped within 15 years and other manufacturers follow similar schedules, that means the infrastructure change has to be 95% complete by 2038.

My guess is that other manufacturers will do much the same, and in the regions/countries where the infrastructure isn't updated by 2035, a lot of people will then buy used ICE scrap from more progressive areas instead of the new cars they might prefer.