There is no intention to make any ground-breaking changes to holidays once they are established and successful.

Think about games like Animal Crossing, where holidays are always the same. I know it's a bit of a drag, but creating content is very time-consuming. If we had to make a new event every year for every holiday, there would be absolutely no time to focus on other things. I mean think about things like Christmas, where not only is there the event itself, but hundreds of items that need to be made as well for the actual rewards.

The goal for holiday events is to establish a fun event, so in the future we can take some pressure off of the events and focus purely on rewards(which is what players really seem to care about).