I think there will be two choices--a weekly all-you-can charge with no limit for ~$75. And three blocks of charging by the kWh:
250 kWh for $50.00; 500kWh for $95.00 and 1,000kWh for $185.00.
I think these choices will work for people who cannot charge at home or work (they can buy one of the bundled packages) and those who take occasional road trips and do not want to worry about "counting the kWh" while on vacation.
At three miles per kWh one can drive 750 miles on 250kWh. A gasoline equivalent of 30MPG at $2.50/gallon = 25 gallons of gasoline for $62.50.
Hey, maybe my prices are too low!