The bullet points seem to be:
- CarPlay gets messaging and VOIP calls with Siri via third-party apps
- New Maps is coming to CarPlay too
- CarPlay Maps instrument cluster
- CarPlay on ultrawide screens
- CarPlay app reordering
There is nothing, that I can see from a developers' point of view for CarPlay, so I think that's still going to be an invitation-only club, so no, you aren't going to see Waze any time soon because of this.
Very few people on here care much about Connect Plus/CarPlay but a common theme amongst them is "CarPlay can only get better with updates." Is this enough?