We started seeing rating rich results (ie. stars) start to disappear yesterday. What is interesting is that we saw the rich results for BlogPosting, Article, NewsArticle, and Services also disappear. These were rich results that fell under the featured snippet documentation prior to May, but after that were removed.
I believe the intention for this change is to tighten up who gets review rich snippets to better inform searchers with real community validation. This is a good thing overall. They do mention in the clarification posted on the announcement on 9/18 that ratings for things like Recipes will still be shown because it is helpful to the user. From this standpoint, I think some of the other categories like BlogPosting, Article, etc may come back.
As for Local Business and Organization markup. For now it appears we need to focus on gathering reviews on 3rd party sites. Previously we had seen aggregate rating work on an Organization site that pointed to 3rd party, as they roll out this change we will continue to see if this is a option now.
We'll be publishing a post on our blog on Schema App's website if you want to stay up to date on our findings. I'll also try to chime in here when we see them.