They MIGHT offer it as a cost upgrade for existing owners. Dealers would have to fit it.
However, it is not just the SIM Card capable hardware that is needed. There would need to be a massive supply infrastructure setup for the features this would offer. They could do this and it would need to be paid for via a subscription, the same as with other EVs that have this.
Is it going to happen, maybe - but unlikely.
The car was sold to me without this feature, I am not complaining.