People will still work on it.That is going on for over a decade. I think this EV concept has failed already. How long can you wait?
EV is not at all a standard product at all in India also.Multiple options means that the cost of each option will be high and that means EV will be a failed effort. The whole idea of bringing cost of EVs down was mass adoption of single product. The internal combustion engine never changed over the years. What changed was aerodynamics and car sizes. Multiple types of batteries will also need specialized maintenence products.