It all remains to be seen, but I really really think all these changes are to make AK a park that goes into the evening year round. I can't remember who posted it here, but someone whose word I put some stock in predicted AKs hours might mirror DHS pretty closely. So Sept would be shorter than June, but will still go past 5. Possibly something like 7:30 most days in the fall, with RoL at 7:45, and some days even later hours.