Automobile industry already faced major technology change due to the concept of electric cars. Similar to this, the same situation is emerging in the aviation industry.
Aircrafts run by electric power will have zero percentile emission and completely silent operation, this makes the major aircraft manufacturers and players focus on electric aircrafts.
Immediate replacement of gas fuel based aircrafts with electric aircrafts can’t be done, even the long-haul air routes can never be covered by electric aircrafts.
Since the major aircraft manufacturers, Airbus and Boeing are planning to create short haul electric aircrafts that cover short flight distance like, domestic and city to city etc.
A huge number of research and funds need to be invested to create such successful electric aircrafts, which should sustain in high speed, high payloads, and high temperatures.