It depends how they interpret the regulations. The iPhone charger is a USB charger so they just change it so the 30pin dock cable that comes with the phone goes to micro-usb instead of full usb - but then it would not work with the computer.
I dont know, I can't realistically see them replacing the 30pin dock connector because it is the same connection on all iDevices (except shuffle) so the universal docks, cables, chargers etc wont be universal anymore. interesting to see how they buy into this and although its just a european initiative, it will obviously affect everywhere as they are not going to do one thing for europe and one thing for ROW