Hi Aaron Schulz, hi Joerg Baach!
I noticed that in the current version there is a minimal support for the new Echo notification system. At the moment only rejections create an EchoEvent. This is pretty cool. But it would be great to have more EchoEvents, like when an article gets approved or a new draft version is created. As FlaggedRevs is productive on many WMF sites I understand if this may be a little overhead. As an alternative FlaggedRevs could have some hooks of it's own, that third party extensions can bind to and fire custom EchoEvents. I think the most important hook would be something like FlaggedRevsRevisionReview. Maybe some *Before* and *After* hooks would make sense too.
Maybe I could add some EchoEvents/Hooks myself and submit a patch to gerrit?
P.S.: FlaggedRevs is a really awesome extension and makes MediaWiki even more valuable. Thanks a lot!