See, there's the rub...
Once you increase the speed potential, which is easily doable today, and the distance capable per charge also easily doable (there are systems out there that can do 50MPH and go something like 100 miles at 28 MPH and you never have to pedal with one charge)
you just made the EU legal E-Assist "bicycle" into a moped/motor bike/E-Bike that some people that were on here earlier absolutely hated, and rightfully so... JMO