Add me to the list of those curious when these events will be. With a week in early September and a long weekend in late September (last hurrah before our APs expire), I hope to be able to get into one of these. I'd love a low crowd late night in either of these parks.
Also watching to see when the next e-mail to register and/or any further information is released on this. Hope it applies to even those staying offsite. We are considering going offsite for money savings for our fall trip.