Electric will help, but it will be a long time before more than two occupants can go further than the next airport on electric. And the cost will be immense to develop and build those new or modified aircraft.
Actually this is could be a real boon to the hobby: you can fly for 1500 pounds a year, which is reasonably cheap as hobbies go, but 10,000 for the licence is a big chunk of money which I'm sure limits people who could otherwise fly. If training could be reduced to e.g. 3000 pounds, I'm sure it would open the hobby to a great many more people.