not sure we know at this point what attendance patterns are all new, its busy now because its crazy every spring break/easter (except 2020 when WDW was closed), for 2021 and beyond I fully expect WDW will return to crowds experienced pre-pandemic but seasonal trends (low/high crowds) will still exist as they largely follow when K-12 kids are in-school/out of school. 50th anniversary events starting October 1st will also increase crowds later this year and into 2022. But still willing to bet that families with school age kids will be less common when schools are in session, compared to July and holiday seasons.It all depends on how well you tolerate the conditions...I mow acres during the day in North Texas during August, so I know and love heat. Before Covid, Disney had successfully convinced lots of families to go other times of the year with pricing, but with lots of people cooped up for a year with travel restrictions and health concerns, the attendance patterns are all new.