Right now in China they have electric filling stations where you don't recharge the battery that's in the vehicle - the whole battery is swapped out for a fully charged one. Whether this is practical in the long run for all applications, in all sorts of weather conditions, remains to be seen. If it does it will rely heavily on automotve designs being modified to accommodate quick swaps. I don't see gas or diesel, or CNG going away, but maybe for those vehicles where unlimited range and an onboard fuel supply is desirable it may end up running something like straight hydrogen gas to power either internal combustion engines modified to run on hydrogen, or in fuel cells to generate electricity.
From an environmental standpoint, I for one won't mind if China skips mechanizing its people on traditional fossil fuels and goes straight to electric, much like most of the 3rd world skipped landline technology and embraced wiresless instead. . Lord knows they pollute enough without 3 billion gas-burning cars on their roads. But from a technology and energy economics standpoint it's a different story. China's already eating our lunch when it comes to manufacturing. It may not be long before the rest of the world starts spying on them and stealing their ideas (for a change) when it comes to EV and other technology