Now that internal combustion powered cars are down to less than 20% of new car sales in quite some countries, and has been for several years, I think we can safely say that the EV is not a fad and that the fossil technology is going the same way as the steam engine in the 60s. The modern electric motor is a superior technology in almost any way. The battery, however, is just good enough, and for the replacement to be complete, better battery technology will be needed. For those last 15-20%, the energy density of Li-Ion is just not good enough.