WOC yes, Fantasmic, no.
Yes, WOC generally runs every night.Is WOC essentially being played every single day? I'm going at the end of September and would like to book a dessert party but am not sure which nights they're on!
Usually WoC is presented nightly. However, just note that on select nights in September, DCA is hosting a hard-ticket Halloween Party. They haven't said, but my guess is that they probably won't present WoC to the general public on those evenings (Sun, Tue, and Thu) because the party starts at 6:00 pm and it's not yet dark.