That overflow line is going to be very interesting this Summer. Everything I've heard states the entire queue can only hold up to ninety minutes worth of guests. This Summer, we are definitely going to see this line go much longer than that. Heck, DM had longer wait times than that last summer. I have heard some people talk about there being holes drilled into the actual street to allow for even more queue, but I haven't gone and seen it with my own two eyes. Yet.