Why not just patch-in weather elements and for future SPs, GPs and EPs incorporate some seasonal outdoor activities?
Vacation EP- 2 new vacation worlds- Mediterranian Island and Alpin Ski Lodge.
Farming GP- Spring Festival & Harvest Festival.
Free Holiday SP- snowball fights, building snowmen, ice skating
Just some examples of what they could bring from future releases to mesh into season-themed activities. A Vacation EP could incorporate activities like scuba diving, surfing, kite flying, beach-related activities, outdoor wear, swimming in ocean, skiing/snowboarding.
