"Einstein" - 2021 ID.4 AWD Pro S, Scale Silver
Version 3.0 is definitely coming to all ID cars as well as the 135kW charging enhancement. Travel Assist auto lane change (and Park Train auto parking) require enhanced sensors which will be arriving in the ID.5 timeframe to the best of my knowledge; not sure if already sold cars can be upgraded or not (probably not). That leaves bi-directional charging - not sure if there was new hardware installed to support this.135kW charging and 29 minutes 5-80%
Auto lane change for the Travel Assist
Vehicle to Load capability
Version 3.0 software
It's not clear if any of this will be made available to 2021 ID4s in the USA.