We have based most of our trips over the last several years over when the EP will be running.
Based on past experience, the EP should begin on Dec. 14 and run nightly through Jan. 6. It will then go dark until peak Spring Break season where it will run nightly. The last couple years they have kept it running the rest of April and May, but just on weeekends until peak season hits in June and then it starts running nightly again.
HTH.