Battery powered aircrafts would require huge jumps in electrical storage. There are no signs of them becoming a reality any time soon. Not to mention the complete replacement of old planes is going to be very very slow.
I don't understand your rail/car replacing flying argument. There are no signs that flying is going to get so expensive that people would rather pay for it with so much of their time.
I don't understand your rail/car replacing flying argument. There are no signs that flying is going to get so expensive that people would rather pay for it with so much of their time.