I sort of expect a dosed attention process:
release of the DVD's
bookform edition of the script ( like Fantastic Beasts)
introduction of a board game
introduction of a video game
memerobilia;
who doesn't want to buy a
ring of power in case one has to propose to someone one can't stand.
action figures:
who does want to have an action figure
Galadriel to roast over a campfire?
they have to find a way to keep the attention at a market were the average attention-span is shorter then that of a proverbial goldfish, otherwise it dies a slow and gruesome death.