Japan is not getting speed up about fully electric cars, so it could be suspected that they are having something else in mind. Honda, Mazda, Nissan, Subaru, Suzuki, Toyota are not stupid and sleeping on their laurels.
Japan is still making excellent electric engines and gearing systems and they could be thinking out a smarter way of powering cars (and ships and airplanes and…) than from the stored power in a battery. Battery production is polluting and ingredients for batteries are getting more difficult to find and digging the ingredients for batteries out of the ground is getting more expensive, what worries the most unfortunately.
As long as producing electricity is polluting (maybe not quite as much as oil driven cars) the Japanese car makers might be thinking of another kind of fuel that possibly could be made less polluting than the existing today. Electricity has the problem that it is not easily stored where it is produced. The longer the wires from place where it is produced to place where it shall be used the greater the loss.
Looking forward to seeing the next kind of fuel and expecting it to come in cars from Japan.