In that case, hope that a charger standard would emerge fast. It would be useless to buy a car that uses an obsolete charger system, that you can't charge at whatever the future standard would be. Still, maybe there will be adapters to charge cars from a different charger standard.

Tesla open-sourced their connector design and specification. Let's hope it's good enough to be reused by other manufacturers so we won't have a connector/charger war.