I don't see it happening, the technology really isn't advancing and the cars are simply too expensive. This would simply be a way of driving the poor/middle class off the road. Wages are being forced down, more people unemployed and a public transport system which doesn't perform and is too expensive. Have a look at this review. My cusrrent car cost less than £3K, does over 550 miles on a tankfull and takes 5 minutes to "recharge". It took my good wife and I on a 2000 mile tour to Vienna last year with all our luggage, no stress.
No electric car could do that.
Here are the cheapest electric cars you can buy new in the UK right now
www.carbuyer.co.uk