I think J1772 has basically won in the U.S. for AC charging. It's hard to imagine something replacing it at this point. The competitors are Tesla's charge por

I think J1772 has basically won in the U.S. for AC charging. It's hard to imagine something replacing it at this point. The competitors are Tesla's charge port and the other DC charging standards. DC chargers though require a lot of power and are expensive, so it's not realistic to expect them to be ubiquitous. J1772 is not much more than a 110 or 220 outlet with a fancy plug and electronic handshake protocol, and can be installed just about anywhere that a regular 110 or 220 outlet is, assuming adequate power is available at the site. (A typical house might have dozens of outlets, but no one expects to be able to run a space heater off of every single plug all at once. Someone installing dozens of chargers, on the other hand, probably intends to use them simultaneously.)