Hi Mary! I was waiting for one of the site's "owners" to reply, because I don't actually know! I'm going to go out on a limb here and tell you that I think the answer is probably "forever," but I'll check and make sure someone gets back to you.
We are so figuring that out right now. Going to ask for lots of feedback starting next week. We've had a few collaboration offers ( always looking for more.) So anyone or any group who wants to go higher on engagement matrix - just message me or im. Or if anyone just wants to discuss how to make the next one better.
We picked dates October 8 - November 18th. It hopefully will be vastly improved since we learned so much.
Also, we are also absolutely running an ARG Academy in the spring.
We're asking for feedback. We should be able to get a survey out in the next few days. But anyone who would like to chat - message Kae or email firstname.lastname@example.org and we'll setup a time to talk online.