Soon a universal charger for mobile phones??

Following a requirement by the European Union, the makers of mobile telephones will have to propose a way of using a universal charger with their telephones.
The goal is not to have to find the good charger for a telephone, but not to have to change the charger that often has an life expectancy higher than the telephone. There would be 500 million chargers in circulation in Europe.
It seems that the preferred format is that of a USB mini connector, already universal in many other uses.
We do not know if Apple will accept adding it to their iPhones, or if they will be satisfied to be in conformity by offering an adapter.
PS: It would be quite important if the manufacturers of cameras also accept to charge their apparatuses by USB connector present on all cameras. They also have as many chargers as models.