The ability to get an automated email with the attendance list would be a definite improvement. We are currently exporting to Excel and then manually sending to the event leader via email.

This would be incredibly useful and also help us to streamline our processes and thereby increase our accuracy and efficiency. It would be very useful to be able to enter a second email for each event (either a default second email, or a different one for each event), and for both email addresses to receive an excel spreadsheet of registered attendees and waitlisted registrants. In our case, we have a coordinator who would be the default recipient, admin support who would be the default second recipient, and a number of rotating event hosts who would be the variable third recipients. It would also be useful to nominate when the email is sent, ie 24h in advance, 1h in advance, etc.

This is exactly what I've been looking for, but I would like to have the option to send it to someone other than the event organizer. We have different people teaching classes, so I want to be able to enter their email address when I set up the event, and then have the attendee list sent to them in advance of each session of their class, similar to the event reminders that go to attendees.

The Event Organizer receives an email for each registrant. That is not the same, nor nearly as convenient, as automatically receiving the full updated list with specified details. I've just had to explain to one of our members (a retired Art Director who organizes a certain event only twice a year) how to import a data file into Excel (etc.) or Word for the simple task of producing a simple sorted attendance list for various uses at the event. That should not be necessary when every one of our Organizers has a similar need.

Also note that an "Organizer" is not necessarily the same person as a "Planner" or "Reservationist," and that none of these people necessarily have admin privileges. (In fact, in our case, only a few of them happen to be admins.) This means an Admin must be troubled to select, export and email data to the Organizer(s) at various stages before the event.

And, various volunteers have different ways of organizing data. Many use a spreadsheet. Being a writer, I prefer a Word table. But our club doesn't care if they use index cards, as long as it works, they're comfortable with it, and it's not a lot of avoidable work.

The option of automatically sending the Organizer an updated list or data file (weekly, daily, when changed, when triggered, etc.) would remove all this hassle and make it easier for us to manage and recruit volunteers.

Regarding the information at "Changing the event organizer" link you mention, it includes advice on how to email to multiple organizers by creating an "email group." That link goes to a Google service (not mentioning that's the target), which requires a Google login account and yet another conceptual and learning process. If we liked the idea of setting up and managing external accounts, more passwords, and using spreadsheets, my predecessor would not have moved us to WA in the first place.

Event organizer already receives emails, see http://help.wildapricot.com/display/DOC/Setting+up+events#Settingupevents-Changingtheeventorganizer
But not for waitlist entries, this is a different suggestion.