Update: as anticipated last Friday during the Community Workshop, we did big steps towards finalizing the graph. Also includes appendices with nice UML-y graphs to detail some event sequence scenarios and defer() behaviour. Take a look!
We’re still discussing where exactly to publish it, but your feedback is already welcome 
https://github.com/PietroPasotti/charm-events/blob/main/README.md
Any reference to status (‘active’) is gone from the graph; instead see Unit and Workload Statuses reference doc