[iSnow]

First off, I am not sure we need to improve on it in the short term. USB-A has existed for ~20y by now on the desktop and is still going strong. If USB-C lives as long, we'll get a break from having to buy different cables for quite some time, which at least is great for /my/ nerves. When I threw away old phone chargers from 1996 and later, it was literally 10 different models.

And if USB-C doesn't cut it anymore, who's to say that industry can't move to a different system? EU legislation usually isn't outlandish but follows industry practices. If device manufacturers bring up a pressing need for USB-D, EU will allow both for a transition period and then mandate USB-D (or split up mandatory standards by device class if need be).

I don't see how every tiny iteration of a standard has to result in a different plug system - the incentive for companies to iterate plugs just to force consumers to re-buy gear is just too high.