Future of what? Reliable mass public transport is the best option for a sustainable future. We don't need car centric suburbia but with heavier and more expensive cars.
I agree, but I don't think that's actually going to replace cars and it doesn't serve everyone, such as the people who live far outside cities.
Hell, I think we'd get flying cars first. It's nearly impossible to touch anything that requires modifying suburbs or their streets, politically.
whether we have a world of 3 billion cars (doubling) or a world of 750 million cars (halving) in 2050, they all need to be electric.