There are a few that might not. I know last year Pirates shut down before 6. Line was way outside the queue for the reopen at 7. I think it was due to the "overlay" but it might happen.
Just as an observation, they were checking wristbands for folks getting in to line for Haunted Mansion at 5:55pm on 10/15, but it may have just been for that particular attraction.
and ignore the wait times posted. We jumped in line for SDMT at 5:58pm last year on a party day. I was showing 45 min wait. it was a straight walk on - just the time it took us to walk the line.