the picture i have in my head is like 3-4 versions of thanalan. 1 rainy season, cleary type season where thanalan is covered with more life then a dry season as it gets back to what it looks like now and so on. and i was thinking like weekly season considering eorzea time is faster than irl time. kinda pushing it though. i dunno XP cuz the way i saw it was seasons would also affect gathering like what you can get in some way. like you get higher chance of getting veggies in spring or something. along with the mob seasonal change to reflect the area.

the thing with the current seasonal events is like this last holiday season it snowed only in the citys. so you only got the feeling of the season changing in the city.