A couple of things I learned in this video which makes me even more skeptical that there will be an update for MY19.
see infiniti USA reply ...
Sad to hear. Although I wouldn’t count on a salesperson or service tech to know what Infiniti has planned on for the future. I just spoke to my salesman and he said they had no clue Apple CarPlay would be in Infiniti vehicles until they arrived.I was at my Infiniti service dealer yesterday for normal maintenance. While killing time, I looked at the 2020 model sitting there....the only differences I saw was with the entertainment system, with a nice HD display and Android Auto / Apple car play. I asked if that system could be retrofitted to the 2019 models...the display and / or software. I was told that neither would could be retrofitted.
While the new HD display was very nice, I should note that I have also driven other cars with the Android system. I have to say I'm not very impressed. Yes, it handles texts better than the system in my 2019 model, and I guess it can use Waze, although I didn't try it. Nothing else was of interest to me and it was awkward to get into and out of every time I got in the car.