Yes, the last official day is the 6th. Typically IASW will stay open until HM reopens without its overlay. Last year HMH ran for a few extra days while Jungle Cruise was down for its overlay removal. This year several areas/attractions (including ROA and the railroad) are scheduled to close for a long time or forever for SW land. We don't know if that means HMH will close on the 7th to get it back up sooner, or if it will still stay open through the weekend like last year.