I think people are expecting this to happen much sooner than it really will. There are still lots of Zoes out there which rely on it, and aside from Instavolt and Ionity, all the UK Charging networks are still installing chargers that are equipped with tethered AC on (most of) their units to this day. Pair that with the fact that some rapid chargers in my area are now 8 and 9 years old to get an idea of how long today's installs may be around for, and I can say with a fair amount of confidence that it's here to stay for a while yet.