I wonder what will happen to the price of jet fuel once electric cars are wide spread. Petroleum production will go down as demand for gasoline will go down while jet fuel demand will probably remain similar. So will that lead to a rise in jet fuel price?
The field requires such a great energy density that I suspect only a remarkable breakthrough in energy density for weight would allow a fully electric solution. Hydrogen is also likely out as the storage cells would be under unimaginable stresses.
In the long term it might actually incentivize the creation of moderate/high speed rail lines in the US.