I would imagine by May 2022 some, if not all, of the Covid restrictions will be gone so there is that. With no restrictions I would also imagine it would probably be pretty crowded. There will most likely be a festival going on both times, F&W in Sept. and F&G in May. It will most likely be hot as hades and rain every single day in Sept. It will be hot but not as hades and will rain in May but probably not as much as Sept. There is a slight change a hurricane will happen in Sept. and if you are flying, that might come into play. So bottom line - Sept. 2021 might still be some, if not as strict, Covid restrictions, there will be a festival happening, it will be hot, muggy and wet. May there most likely won't be Covid restrictions, there will be a festival, it will be less hot, just as muggy and maybe a little less wet. I'm guessing May will probably be more crowded than Sept. just because if all restrictions have been lifted parks will be able to open fully.