Toyota needs the dealers as much as the dealers need Toyota, when I ordered mine, there was a lot of phone calls since I was insistent on Car Play, without it I was going to walk, so was the wife with her CH-R order, I need the ability to use Webex ( a Phone conferencing facility ) whilst driving, its a App on Android or Apple, otherwise I would have to stop the car and dial in, use conference access codes etc etc,
Over the 2 hours of back and fore calls it was finally agreed that March would have it as standard, its in writing, and this was before any announcements,
Toyota are lucky in that they sell all they make but once the 2020 is out, no one would want a 2019 without a decent discount.